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| author | Sanjay Patel <spatel@rotateright.com> | 2018-08-09 17:26:22 +0000 |
|---|---|---|
| committer | Sanjay Patel <spatel@rotateright.com> | 2018-08-09 17:26:22 +0000 |
| commit | 15d1501aaefc0d8c86bf90e0abe6cb8d315031f2 (patch) | |
| tree | a81552f999708e63d9a6aeefd5b385c1334b67e5 /llvm/test/CodeGen/PowerPC/funnel-shift-rot.ll | |
| parent | a42dec7a1b905fff024fad2c4e02f5b070e3d0c7 (diff) | |
| download | bcm5719-llvm-15d1501aaefc0d8c86bf90e0abe6cb8d315031f2.tar.gz bcm5719-llvm-15d1501aaefc0d8c86bf90e0abe6cb8d315031f2.zip | |
[SelectionDAG] try harder to convert funnel shift to rotate
Similar to rL337966 - if the DAGCombiner's rotate matching was
working as expected, I don't think we'd see any test diffs here.
AArch only goes right, and PPC only goes left.
x86 has both, so no diffs there.
Differential Revision: https://reviews.llvm.org/D50091
llvm-svn: 339359
Diffstat (limited to 'llvm/test/CodeGen/PowerPC/funnel-shift-rot.ll')
| -rw-r--r-- | llvm/test/CodeGen/PowerPC/funnel-shift-rot.ll | 4 |
1 files changed, 1 insertions, 3 deletions
diff --git a/llvm/test/CodeGen/PowerPC/funnel-shift-rot.ll b/llvm/test/CodeGen/PowerPC/funnel-shift-rot.ll index 35f46e7154b..fd5f51c9e9f 100644 --- a/llvm/test/CodeGen/PowerPC/funnel-shift-rot.ll +++ b/llvm/test/CodeGen/PowerPC/funnel-shift-rot.ll @@ -145,7 +145,6 @@ define i32 @rotr_i32(i32 %x, i32 %z) { ; CHECK-LABEL: rotr_i32: ; CHECK: # %bb.0: ; CHECK-NEXT: neg 4, 4 -; CHECK-NEXT: clrlwi 4, 4, 27 ; CHECK-NEXT: rlwnm 3, 3, 4, 0, 31 ; CHECK-NEXT: blr %f = call i32 @llvm.fshr.i32(i32 %x, i32 %x, i32 %z) @@ -156,8 +155,7 @@ define i64 @rotr_i64(i64 %x, i64 %z) { ; CHECK-LABEL: rotr_i64: ; CHECK: # %bb.0: ; CHECK-NEXT: neg 4, 4 -; CHECK-NEXT: rlwinm 4, 4, 0, 26, 31 -; CHECK-NEXT: rotld 3, 3, 4 +; CHECK-NEXT: rldcl 3, 3, 4, 0 ; CHECK-NEXT: blr %f = call i64 @llvm.fshr.i64(i64 %x, i64 %x, i64 %z) ret i64 %f |
