398 lines
13 KiB
LLVM
398 lines
13 KiB
LLVM
; RUN: llc -mtriple=arm-eabi %s -o - | FileCheck %s -check-prefix=CHECK --check-prefix=CHECK-LE
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; RUN: llc -mtriple=armv7-eabi %s -o - | FileCheck %s -check-prefix=CHECK --check-prefix=CHECK-V7-LE
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; RUN: llc -mtriple=armeb-eabi %s -o - | FileCheck %s --check-prefix=CHECK --check-prefix=CHECK-BE
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; RUN: llc -mtriple=armebv7-eabi %s -o - | FileCheck %s -check-prefix=CHECK -check-prefix=CHECK-V7-BE
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; RUN: llc -mtriple=thumbv6-eabi %s -o - | FileCheck %s -check-prefix=CHECK -check-prefix=CHECK-V6-THUMB
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; RUN: llc -mtriple=thumbv6t2-eabi %s -o - | FileCheck %s -check-prefix=CHECK -check-prefix=CHECK-T2-DSP
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; RUN: llc -mtriple=thumbv7-eabi %s -o - | FileCheck %s -check-prefix=CHECK -check-prefix=CHECK-T2-DSP
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; RUN: llc -mtriple=thumbebv7-eabi %s -o - | FileCheck %s -check-prefix=CHECK -check-prefix=CHECK-V7-THUMB-BE
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; RUN: llc -mtriple=thumbv6m-eabi %s -o - | FileCheck %s -check-prefix=CHECK -check-prefix=CHECK-V6M-THUMB
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; RUN: llc -mtriple=thumbv7m-eabi %s -o - | FileCheck %s -check-prefix=CHECK -check-prefix=CHECK-V7M-THUMB
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; RUN: llc -mtriple=thumbv7em-eabi %s -o - | FileCheck %s -check-prefix=CHECK -check-prefix=CHECK-T2-DSP
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; RUN: llc -mtriple=armv5te-eabi %s -o - | FileCheck %s -check-prefix=CHECK -check-prefix=CHECK-V5TE
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; Check generated signed and unsigned multiply accumulate long.
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define i64 @MACLongTest1(i32 %a, i32 %b, i64 %c) {
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;CHECK-LABEL: MACLongTest1:
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;CHECK-V6-THUMB-NOT: umlal
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;CHECK-LE: umlal [[RDLO:r[0-9]+]], [[RDHI:r[0-9]+]], [[LHS:r[0-9]+]], [[RHS:r[0-9]+]]
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;CHECK-LE: mov r0, [[RDLO]]
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;CHECK-LE: mov r1, [[RDHI]]
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;CHECK-BE: umlal [[RDLO:r[0-9]+]], [[RDHI:r[0-9]+]], [[LHS:r[0-9]+]], [[RHS:r[0-9]+]]
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;CHECK-BE: mov r0, [[RDHI]]
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;CHECK-BE: mov r1, [[RDLO]]
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;CHECK-T2-DSP: umlal [[RDLO:r[0-9]+]], [[RDHI:r[0-9]+]], [[LHS:r[0-9]+]], [[RHS:r[0-9]+]]
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;CHECK-T2-DSP-NEXT: mov r0, [[RDLO]]
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;CHECK-T2-DSP-NEXT: mov r1, [[RDHI]]
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;CHECK-V7-THUMB-BE: umlal [[RDLO:r[0-9]+]], [[RDHI:r[0-9]+]], [[LHS:r[0-9]+]], [[RHS:r[0-9]+]]
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;CHECK-V7-THUMB-BE: mov r0, [[RDHI]]
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;CHECK-V7-THUMB-BE: mov r1, [[RDLO]]
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%conv = zext i32 %a to i64
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%conv1 = zext i32 %b to i64
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%mul = mul i64 %conv1, %conv
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%add = add i64 %mul, %c
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ret i64 %add
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}
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define i64 @MACLongTest2(i32 %a, i32 %b, i64 %c) {
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;CHECK-LABEL: MACLongTest2:
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;CHECK-LE: smlal [[RDLO:r[0-9]+]], [[RDHI:r[0-9]+]], [[LHS:r[0-9]+]], [[RHS:r[0-9]+]]
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;CHECK-LE: mov r0, [[RDLO]]
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;CHECK-LE: mov r1, [[RDHI]]
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;CHECK-BE: smlal [[RDLO:r[0-9]+]], [[RDHI:r[0-9]+]], [[LHS:r[0-9]+]], [[RHS:r[0-9]+]]
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;CHECK-BE: mov r0, [[RDHI]]
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;CHECK-BE: mov r1, [[RDLO]]
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;CHECK-T2-DSP: smlal [[RDLO:r[0-9]+]], [[RDHI:r[0-9]+]], [[LHS:r[0-9]+]], [[RHS:r[0-9]+]]
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;CHECK-T2-DSP-NEXT: mov r0, [[RDLO]]
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;CHECK-T2-DSP-NEXT: mov r1, [[RDHI]]
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;CHECK-V7-THUMB-BE: smlal [[RDLO:r[0-9]+]], [[RDHI:r[0-9]+]], [[LHS:r[0-9]+]], [[RHS:r[0-9]+]]
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;CHECK-V7-THUMB-BE: mov r0, [[RDHI]]
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;CHECK-V7-THUMB-BE: mov r1, [[RDLO]]
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%conv = sext i32 %a to i64
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%conv1 = sext i32 %b to i64
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%mul = mul nsw i64 %conv1, %conv
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%add = add nsw i64 %mul, %c
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ret i64 %add
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}
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; Two things to check here: the @earlyclobber constraint (on <= v5) and the "$Rd = $R" ones.
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; + Without @earlyclobber the v7 code is natural. With it, the first two
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; registers must be distinct from the third.
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; + Without "$Rd = $R", this can be satisfied without a mov before the umlal
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; by trying to use 6 different registers in the MachineInstr. The natural
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; evolution of this attempt currently leaves only two movs in the final
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; function, both after the umlal. With it, *some* move has to happen
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; before the umlal.
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define i64 @MACLongTest3(i32 %a, i32 %b, i32 %c) {
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;CHECK-LABEL: MACLongTest3:
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;CHECK-LE: mov [[RDHI:r[0-9]+]], #0
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;CHECK-LE: umlal [[RDLO:r[0-9]+]], [[RDHI]], r1, r0
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;CHECK-LE: mov r0, [[RDLO]]
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;CHECK-LE: mov r1, [[RDHI]]
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;CHECK-BE: mov [[RDHI:r[0-9]+]], #0
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;CHECK-BE: umlal [[RDLO:r[0-9]+]], [[RDHI]], r1, r0
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;CHECK-BE: mov r0, [[RDHI]]
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;CHECK-BE: mov r1, [[RDLO]]
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;CHECK-T2-DSP: umlal
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;CHECK-V6-THUMB-NOT: umlal
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%conv = zext i32 %b to i64
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%conv1 = zext i32 %a to i64
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%mul = mul i64 %conv, %conv1
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%conv2 = zext i32 %c to i64
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%add = add i64 %mul, %conv2
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ret i64 %add
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}
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define i64 @MACLongTest4(i32 %a, i32 %b, i32 %c) {
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;CHECK-LABEL: MACLongTest4:
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;CHECK-V6-THUMB-NOT: smlal
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;CHECK-T2-DSP: smlal
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;CHECK-LE: asr [[RDHI:r[0-9]+]], [[RDLO:r[0-9]+]], #31
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;CHECK-LE: smlal [[RDLO]], [[RDHI]], r1, r0
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;CHECK-LE: mov r0, [[RDLO]]
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;CHECK-LE: mov r1, [[RDHI]]
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;CHECK-BE: asr [[RDHI:r[0-9]+]], [[RDLO:r[0-9]+]], #31
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;CHECK-BE: smlal [[RDLO]], [[RDHI]], r1, r0
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;CHECK-BE: mov r0, [[RDHI]]
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;CHECK-BE: mov r1, [[RDLO]]
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%conv = sext i32 %b to i64
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%conv1 = sext i32 %a to i64
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%mul = mul nsw i64 %conv, %conv1
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%conv2 = sext i32 %c to i64
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%add = add nsw i64 %mul, %conv2
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ret i64 %add
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}
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define i64 @MACLongTest6(i32 %a, i32 %b, i32 %c, i32 %d) {
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;CHECK-LABEL: MACLongTest6:
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;CHECK-V6-THUMB-NOT: smull
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;CHECK-V6-THUMB-NOT: smlal
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;CHECK-LE: smull r12, lr, r1, r0
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;CHECK-LE: smlal r12, lr, r3, r2
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;CHECK-V7: smull [[RDLO:r[0-9]+]], [[RDHI:r[0-9]+]], r1, r0
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;CHECK-V7: smlal [[RDLO]], [[RDHI]], [[Rn:r[0-9]+]], [[Rm:r[0-9]+]]
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;CHECK-T2-DSP: smull [[RDLO:r[0-9]+]], [[RDHI:r[0-9]+]], r1, r0
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;CHECK-T2-DSP: smlal [[RDLO]], [[RDHI]], [[Rn:r[0-9]+]], [[Rm:r[0-9]+]]
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%conv = sext i32 %a to i64
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%conv1 = sext i32 %b to i64
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%mul = mul nsw i64 %conv1, %conv
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%conv2 = sext i32 %c to i64
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%conv3 = sext i32 %d to i64
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%mul4 = mul nsw i64 %conv3, %conv2
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%add = add nsw i64 %mul4, %mul
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ret i64 %add
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}
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define i64 @MACLongTest7(i64 %acc, i32 %lhs, i32 %rhs) {
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;CHECK-LABEL: MACLongTest7:
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;CHECK-NOT: smlal
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;CHECK-V6-THUMB2-NOT: smlal
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;CHECK-V7-THUMB-NOT: smlal
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;CHECK-V6-THUMB-NOT: smlal
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%conv = sext i32 %lhs to i64
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%conv1 = sext i32 %rhs to i64
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%mul = mul nsw i64 %conv1, %conv
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%shl = shl i64 %mul, 32
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%shr = lshr i64 %mul, 32
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%or = or i64 %shl, %shr
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%add = add i64 %or, %acc
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ret i64 %add
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}
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define i64 @MACLongTest8(i64 %acc, i32 %lhs, i32 %rhs) {
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;CHECK-LABEL: MACLongTest8:
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;CHECK-NOT: smlal
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;CHECK-V6-THUMB2-NOT: smlal
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;CHECK-V7-THUMB-NOT: smlal
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;CHECK-V6-THUMB-NOT: smlal
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%conv = zext i32 %lhs to i64
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%conv1 = zext i32 %rhs to i64
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%mul = mul nuw i64 %conv1, %conv
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%and = and i64 %mul, 4294967295
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%shl = shl i64 %mul, 32
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%or = or i64 %and, %shl
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%add = add i64 %or, %acc
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ret i64 %add
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}
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define i64 @MACLongTest9(i32 %lhs, i32 %rhs, i32 %lo, i32 %hi) {
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;CHECK-LABEL: MACLongTest9:
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;CHECK-V7-LE: umaal [[RDLO:r[0-9]+]], [[RDHI:r[0-9]+]], [[LHS:r[0-9]+]], [[RHS:r[0-9]+]]
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;CHECK-V7-LE: mov r0, [[RDLO]]
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;CHECK-V7-LE: mov r1, [[RDHI]]
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;CHECK-V7-BE: umaal [[RDLO:r[0-9]+]], [[RDHI:r[0-9]+]], [[LHS:r[0-9]+]], [[RHS:r[0-9]+]]
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;CHECK-V7-BE: mov r0, [[RDHI]]
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;CHECK-V7-BE: mov r1, [[RDLO]]
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;CHECK-T2-DSP: umaal [[RDLO:r[0-9]+]], [[RDHI:r[0-9]+]], [[LHS:r[0-9]+]], [[RHS:r[0-9]+]]
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;CHECK-T2-DSP-NEXT: mov r0, [[RDLO]]
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;CHECK-T2-DSP-NEXT: mov r1, [[RDHI]]
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;CHECK-V7-THUMB-BE: umaal [[RDLO:r[0-9]+]], [[RDHI:r[0-9]+]], [[LHS:r[0-9]+]], [[RHS:r[0-9]+]]
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;CHECK-V7-THUMB-BE: mov r0, [[RDHI]]
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;CHECK-V7-THUMB-BE: mov r1, [[RDLO]]
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;CHECK-NOT:umaal
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;CHECK-V6-THUMB-NOT: umaal
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;CHECK-V6M-THUMB-NOT: umaal
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;CHECK-V7M-THUMB-NOT: umaal
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%conv = zext i32 %lhs to i64
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%conv1 = zext i32 %rhs to i64
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%mul = mul nuw i64 %conv1, %conv
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%conv2 = zext i32 %lo to i64
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%add = add i64 %mul, %conv2
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%conv3 = zext i32 %hi to i64
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%add2 = add i64 %add, %conv3
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ret i64 %add2
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}
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define i64 @MACLongTest10(i32 %lhs, i32 %rhs, i32 %lo, i32 %hi) {
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;CHECK-LABEL: MACLongTest10:
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;CHECK-V7-LE: umaal [[RDLO:r[0-9]+]], [[RDHI:r[0-9]+]], [[LHS:r[0-9]+]], [[RHS:r[0-9]+]]
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;CHECK-V7-LE: mov r0, [[RDLO]]
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;CHECK-V7-LE: mov r1, [[RDHI]]
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;CHECK-V7-BE: umaal [[RDLO:r[0-9]+]], [[RDHI:r[0-9]+]], [[LHS:r[0-9]+]], [[RHS:r[0-9]+]]
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;CHECK-V7-BE: mov r0, [[RDHI]]
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;CHECK-V7-BE: mov r1, [[RDLO]]
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;CHECK-T2-DSP: umaal r2, r3, r1, r0
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;CHECK-T2-DSP-NEXT: mov r0, r2
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;CHECK-T2-DSP-NEXT: mov r1, r3
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;CHECK-V7-THUMB-BE: umaal [[RDLO:r[0-9]+]], [[RDHI:r[0-9]+]], [[LHS:r[0-9]+]], [[RHS:r[0-9]+]]
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;CHECK-V7-THUMB-BE: mov r0, [[RDHI]]
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;CHECK-V7-THUMB-BE: mov r1, [[RDLO]]
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;CHECK-NOT:umaal
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;CHECK-V6-THUMB-NOT:umaal
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;CHECK-V6M-THUMB-NOT: umaal
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;CHECK-V7M-THUMB-NOT: umaal
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%conv = zext i32 %lhs to i64
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%conv1 = zext i32 %rhs to i64
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%mul = mul nuw i64 %conv1, %conv
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%conv2 = zext i32 %lo to i64
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%conv3 = zext i32 %hi to i64
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%add = add i64 %conv2, %conv3
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%add2 = add i64 %add, %mul
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ret i64 %add2
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}
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define i64 @MACLongTest11(i16 %a, i16 %b, i64 %c) {
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;CHECK-LABEL: MACLongTest11:
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;CHECK-T2-DSP-NOT: sxth
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;CHECK-T2-DSP: smlalbb r2, r3
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;CHECK-T2-DSP-NEXT: mov r0, r2
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;CHECK-T2-DSP-NEXT: mov r1, r3
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;CHECK-V5TE-NOT: sxth
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;CHECK-V5TE: smlalbb r2, r3
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;CHECK-V5TE-NEXT: mov r0, r2
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;CHECK-V5TE-NEXT: mov r1, r3
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;CHECK-V7-LE-NOT: sxth
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;CHECK-V7-LE: smlalbb r2, r3
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;CHECK-V7-LE-NEXT: mov r0, r2
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;CHECK-V7-LE-NEXT: mov r1, r3
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;CHECK-V7-THUMB-BE: smlalbb r3, r2
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;CHECK-V7-THUMB-BE-NEXT: mov r0, r2
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;CHECK-V7-THUMB-BE-NEXT: mov r1, r3
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;CHECK-LE-NOT: smlalbb
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;CHECK-BE-NOT: smlalbb
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;CHECK-V6M-THUMB-NOT: smlalbb
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;CHECK-V7M-THUMB-NOT: smlalbb
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%conv = sext i16 %a to i32
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%conv1 = sext i16 %b to i32
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%mul = mul nsw i32 %conv1, %conv
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%conv2 = sext i32 %mul to i64
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%add = add nsw i64 %conv2, %c
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ret i64 %add
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}
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define i64 @MACLongTest12(i16 %b, i32 %t, i64 %c) {
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;CHECK-LABEL: MACLongTest12:
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;CHECK-T2-DSP-NOT: sxth
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;CHECK-T2-DSP-NOT: {{asr|lsr}}
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;CHECK-T2-DSP: smlalbt r2, r3, r0, r1
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;CHECK-T2-DSP-NEXT: mov r0, r2
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;CHECK-T2-DSP-NEXT: mov r1, r3
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;CHECK-T2-DSP-NOT: sxth
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;CHECK-V5TE-NOT: sxth
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;CHECK-V5TE-NOT: {{asr|lsr}}
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;CHECK-V5TE: smlalbt r2, r3, r0, r1
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;CHECK-V5TE-NEXT: mov r0, r2
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;CHECK-V5TE-NEXT: mov r1, r3
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;CHECK-V7-LE-NOT: sxth
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;CHECK-V7-LE-NOT: {{asr|lsr}}
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;CHECK-V7-LE: smlalbt r2, r3, r0, r1
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;CHECK-V7-LE-NEXT: mov r0, r2
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;CHECK-V7-LE-NEXT: mov r1, r3
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;CHECK-V7-THUMB-BE: smlalbt r3, r2,
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;CHECK-V7-THUMB-BE-NEXT: mov r0, r2
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;CHECK-V7-THUMB-BE-NEXT: mov r1, r3
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;CHECK-LE-NOT: smlalbt
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;CHECK-BE-NOT: smlalbt
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;CHECK-V6M-THUMB-NOT: smlalbt
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;CHECK-V7M-THUMB-NOT: smlalbt
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%conv0 = sext i16 %b to i32
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%conv1 = ashr i32 %t, 16
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%mul = mul nsw i32 %conv0, %conv1
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%conv2 = sext i32 %mul to i64
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%add = add nsw i64 %conv2, %c
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ret i64 %add
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}
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define i64 @MACLongTest13(i32 %t, i16 %b, i64 %c) {
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;CHECK-LABEL: MACLongTest13:
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;CHECK-T2-DSP-NOT: sxth
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;CHECK-T2-DSP-NOT: {{asr|lsr}}
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;CHECK-T2-DSP: smlaltb r2, r3, r0, r1
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;CHECK-T2-DSP-NEXT: mov r0, r2
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;CHECK-T2-DSP-NEXT: mov r1, r3
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;CHECK-V5TE-NOT: sxth
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;CHECK-V5TE-NOT: {{asr|lsr}}
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;CHECK-V5TE: smlaltb r2, r3, r0, r1
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;CHECK-V5TE-NEXT: mov r0, r2
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;CHECK-V5TE-NEXT: mov r1, r3
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;CHECK-V7-LE-NOT: sxth
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;CHECK-V7-LE-NOT: {{asr|lsr}}
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;CHECK-V7-LE: smlaltb r2, r3, r0, r1
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;CHECK-V7-LE-NEXT: mov r0, r2
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;CHECK-V7-LE-NEXT: mov r1, r3
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;CHECK-V7-THUMB-BE: smlaltb r3, r2, r0, r1
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;CHECK-V7-THUMB-BE-NEXT: mov r0, r2
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;CHECK-V7-THUMB-BE-NEXT: mov r1, r3
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;CHECK-LE-NOT: smlaltb
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;CHECK-BE-NOT: smlaltb
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;CHECK-V6M-THUMB-NOT: smlaltb
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;CHECK-V7M-THUMB-NOT: smlaltb
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%conv0 = ashr i32 %t, 16
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%conv1= sext i16 %b to i32
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%mul = mul nsw i32 %conv0, %conv1
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%conv2 = sext i32 %mul to i64
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%add = add nsw i64 %conv2, %c
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ret i64 %add
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}
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define i64 @MACLongTest14(i32 %a, i32 %b, i64 %c) {
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;CHECK-LABEL: MACLongTest14:
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;CHECK-T2-DSP-NOT: {{asr|lsr}}
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;CHECK-T2-DSP: smlaltt r2, r3,
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;CHECK-T2-DSP-NEXT: mov r0, r2
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;CHECK-T2-DSP-NEXT: mov r1, r3
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;CHECK-V5TE-NOT: {{asr|lsr}}
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;CHECK-V5TE: smlaltt r2, r3,
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;CHECK-V5TE-NEXT: mov r0, r2
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;CHECK-V5TE-NEXT: mov r1, r3
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;CHECK-V7-LE-NOT: {{asr|lsr}}
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;CHECK-V7-LE: smlaltt r2, r3,
|
|
;CHECK-V7-LE-NEXT: mov r0, r2
|
|
;CHECK-V7-LE-NEXT: mov r1, r3
|
|
;CHECK-V7-THUMB-BE: smlaltt r3, r2,
|
|
;CHECK-V7-THUMB-BE-NEXT: mov r0, r2
|
|
;CHECK-V7-THUMB-BE-NEXT: mov r1, r3
|
|
;CHECK-LE-NOT: smlaltt
|
|
;CHECK-BE-NOT: smlaltt
|
|
;CHECK-V6M-THUMB-NOT: smlaltt
|
|
;CHECK-V7M-THUMB-NOT: smlaltt
|
|
%conv0 = ashr i32 %a, 16
|
|
%conv1 = ashr i32 %b, 16
|
|
%mul = mul nsw i32 %conv1, %conv0
|
|
%conv2 = sext i32 %mul to i64
|
|
%add = add nsw i64 %conv2, %c
|
|
ret i64 %add
|
|
}
|
|
|
|
@global_b = external global i16, align 2
|
|
;CHECK-LABEL: MACLongTest15
|
|
;CHECK-T2-DSP-NOT: {{asr|lsr}}
|
|
;CHECK-T2-DSP: smlaltb r2, r3, r0, r1
|
|
;CHECK-T2-DSP-NEXT: mov r0, r2
|
|
;CHECK-T2-DSP-NEXT: mov r1, r3
|
|
;CHECK-V5TE-NOT: {{asr|lsr}}
|
|
;CHECK-V5TE: smlaltb r2, r3, r0, r1
|
|
;CHECK-V5TE-NEXT: mov r0, r2
|
|
;CHECK-V5TE-NEXT: mov r1, r3
|
|
;CHECK-V7-LE-NOT: {{asr|lsr}}
|
|
;CHECK-V7-LE: smlaltb r2, r3, r0, r1
|
|
;CHECK-V7-LE-NEXT: mov r0, r2
|
|
;CHECK-V7-LE-NEXT: mov r1, r3
|
|
;CHECK-V7-THUMB-BE: smlaltb r3, r2, r0, r1
|
|
;CHECK-V7-THUMB-BE-NEXT: mov r0, r2
|
|
;CHECK-V7-THUMB-BE-NEXT: mov r1, r3
|
|
;CHECK-LE-NOT: smlaltb
|
|
;CHECK-BE-NOT: smlaltb
|
|
;CHECK-V6M-THUMB-NOT: smlaltb
|
|
;CHECK-V7M-THUMB-NOT: smlaltb
|
|
define i64 @MACLongTest15(i32 %t, i64 %acc) {
|
|
entry:
|
|
%0 = load i16, i16* @global_b, align 2
|
|
%conv = sext i16 %0 to i32
|
|
%shr = ashr i32 %t, 16
|
|
%mul = mul nsw i32 %shr, %conv
|
|
%conv1 = sext i32 %mul to i64
|
|
%add = add nsw i64 %conv1, %acc
|
|
ret i64 %add
|
|
}
|
|
|
|
;CHECK-LABEL: MACLongTest16
|
|
;CHECK-T2-DSP-NOT: {{asr|lsr}}
|
|
;CHECK-T2-DSP: smlalbt r2, r3, r1, r0
|
|
;CHECK-T2-DSP-NEXT: mov r0, r2
|
|
;CHECK-T2-DSP-NEXT: mov r1, r3
|
|
;CHECK-V5TE-NOT: {{asr|lsr}}
|
|
;CHECK-V5TE: smlalbt r2, r3, r1, r0
|
|
;CHECK-V5TE-NEXT: mov r0, r2
|
|
;CHECK-V5TE-NEXT: mov r1, r3
|
|
;CHECK-V7-LE: smlalbt r2, r3, r1, r0
|
|
;CHECK-V7-LE-NEXT: mov r0, r2
|
|
;CHECK-V7-LE-NEXT: mov r1, r3
|
|
;CHECK-V7-THUMB-BE: smlalbt r3, r2, r1, r0
|
|
;CHECK-V7-THUMB-BE-NEXT: mov r0, r2
|
|
;CHECK-V7-THUMB-BE-NEXT: mov r1, r3
|
|
;CHECK-LE-NOT: smlalbt
|
|
;CHECK-BE-NOT: smlalbt
|
|
;CHECK-V6M-THUMB-NOT: smlalbt
|
|
;CHECK-V7M-THUMB-NOT: smlalbt
|
|
define i64 @MACLongTest16(i32 %t, i64 %acc) {
|
|
entry:
|
|
%0 = load i16, i16* @global_b, align 2
|
|
%conv = sext i16 %0 to i32
|
|
%shr = ashr i32 %t, 16
|
|
%mul = mul nsw i32 %conv, %shr
|
|
%conv1 = sext i32 %mul to i64
|
|
%add = add nsw i64 %conv1, %acc
|
|
ret i64 %add
|
|
}
|