diff options
| author | Yi Yang <qingfeng.yy@alibaba-inc.com> | 2023-05-18 11:17:11 +0000 |
|---|---|---|
| committer | Keith Randall <khr@golang.org> | 2023-05-24 02:54:03 +0000 |
| commit | fa50248ce6dfbe8afb18a67aa4d0d0cd3800a329 (patch) | |
| tree | 6b9a4c15d7a8c3902be14927ff7375775d4ba1a8 /test/codegen | |
| parent | e7a9ca0a53db4b4f357b5d3caaef65e44ce08a90 (diff) | |
| download | go-fa50248ce6dfbe8afb18a67aa4d0d0cd3800a329.tar.xz | |
cmd/compile: sparse conditional constant propagation
sparse conditional constant propagation can discover optimization opportunities that cannot be found by just combining constant folding and constant propagation and dead code elimination separately.
Updates #59399
Change-Id: Ia954e906480654a6f0cc065d75b5912f96f36b2e
GitHub-Last-Rev: 90fc02db99f817b7f0ce5c584642ab1b166e62d7
GitHub-Pull-Request: golang/go#59575
Reviewed-on: https://go-review.googlesource.com/c/go/+/483875
Reviewed-by: Keith Randall <khr@golang.org>
Reviewed-by: Keith Randall <khr@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Michael Pratt <mpratt@google.com>
Run-TryBot: Keith Randall <khr@golang.org>
Diffstat (limited to 'test/codegen')
| -rw-r--r-- | test/codegen/compare_and_branch.go | 12 |
1 files changed, 6 insertions, 6 deletions
diff --git a/test/codegen/compare_and_branch.go b/test/codegen/compare_and_branch.go index b3feef0eb7..479bd318be 100644 --- a/test/codegen/compare_and_branch.go +++ b/test/codegen/compare_and_branch.go @@ -35,12 +35,12 @@ func si64x8() { } // s390x:"CGIJ\t[$]2, R[0-9]+, [$]127, " - for i := int64(0); i >= 128; i++ { + for i := int64(129); i >= 128; i-- { dummy() } // s390x:"CGIJ\t[$]4, R[0-9]+, [$]-128, " - for i := int64(0); i <= -129; i-- { + for i := int64(-130); i <= -129; i++ { dummy() } } @@ -71,7 +71,7 @@ func ui64x8() { } // s390x:"CLGIJ\t[$]2, R[0-9]+, [$]255, " - for i := uint64(0); i >= 256; i-- { + for i := uint64(257); i >= 256; i-- { dummy() } @@ -107,12 +107,12 @@ func si32x8() { } // s390x:"CIJ\t[$]2, R[0-9]+, [$]127, " - for i := int32(0); i >= 128; i++ { + for i := int32(129); i >= 128; i-- { dummy() } // s390x:"CIJ\t[$]4, R[0-9]+, [$]-128, " - for i := int32(0); i <= -129; i-- { + for i := int32(-130); i <= -129; i++ { dummy() } } @@ -143,7 +143,7 @@ func ui32x8() { } // s390x:"CLIJ\t[$]2, R[0-9]+, [$]255, " - for i := uint32(0); i >= 256; i-- { + for i := uint32(257); i >= 256; i-- { dummy() } |