diff options
Diffstat (limited to 'test/codegen')
| -rw-r--r-- | test/codegen/compare_and_branch.go | 22 |
1 files changed, 12 insertions, 10 deletions
diff --git a/test/codegen/compare_and_branch.go b/test/codegen/compare_and_branch.go index b3feef0eb7..3502a03022 100644 --- a/test/codegen/compare_and_branch.go +++ b/test/codegen/compare_and_branch.go @@ -23,24 +23,25 @@ func si64(x, y chan int64) { } // Signed 64-bit compare-and-branch with 8-bit immediate. -func si64x8() { +func si64x8(doNotOptimize int64) { + // take in doNotOptimize as an argument to avoid the loops being rewritten to count down // s390x:"CGIJ\t[$]12, R[0-9]+, [$]127, " - for i := int64(0); i < 128; i++ { + for i := doNotOptimize; i < 128; i++ { dummy() } // s390x:"CGIJ\t[$]10, R[0-9]+, [$]-128, " - for i := int64(0); i > -129; i-- { + for i := doNotOptimize; i > -129; i-- { dummy() } // s390x:"CGIJ\t[$]2, R[0-9]+, [$]127, " - for i := int64(0); i >= 128; i++ { + for i := doNotOptimize; i >= 128; i++ { dummy() } // s390x:"CGIJ\t[$]4, R[0-9]+, [$]-128, " - for i := int64(0); i <= -129; i-- { + for i := doNotOptimize; i <= -129; i-- { dummy() } } @@ -95,24 +96,25 @@ func si32(x, y chan int32) { } // Signed 32-bit compare-and-branch with 8-bit immediate. -func si32x8() { +func si32x8(doNotOptimize int32) { + // take in doNotOptimize as an argument to avoid the loops being rewritten to count down // s390x:"CIJ\t[$]12, R[0-9]+, [$]127, " - for i := int32(0); i < 128; i++ { + for i := doNotOptimize; i < 128; i++ { dummy() } // s390x:"CIJ\t[$]10, R[0-9]+, [$]-128, " - for i := int32(0); i > -129; i-- { + for i := doNotOptimize; i > -129; i-- { dummy() } // s390x:"CIJ\t[$]2, R[0-9]+, [$]127, " - for i := int32(0); i >= 128; i++ { + for i := doNotOptimize; i >= 128; i++ { dummy() } // s390x:"CIJ\t[$]4, R[0-9]+, [$]-128, " - for i := int32(0); i <= -129; i-- { + for i := doNotOptimize; i <= -129; i-- { dummy() } } |