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| author | Ulrich Weigand <ulrich.weigand@de.ibm.com> | 2016-04-07 16:11:44 +0000 |
|---|---|---|
| committer | Ulrich Weigand <ulrich.weigand@de.ibm.com> | 2016-04-07 16:11:44 +0000 |
| commit | 2eb027d21f882e03f0658cddbdfee31efbf08663 (patch) | |
| tree | df88bad9a10f8b4870b77b2a2089a4a807962979 /llvm/test/CodeGen/SystemZ/strcmp-01.ll | |
| parent | 14e351a553ea84d864174793a0a58b7ecda36c5d (diff) | |
| download | bcm5719-llvm-2eb027d21f882e03f0658cddbdfee31efbf08663.tar.gz bcm5719-llvm-2eb027d21f882e03f0658cddbdfee31efbf08663.zip | |
[SystemZ] Implement conditional returns
Return is now considered a predicable instruction, and is converted
to a newly-added CondReturn (which maps to BCR to %r14) instruction by
the if conversion pass.
Also, fused compare-and-branch transform knows about conditional
returns, emitting the proper fused instructions for them.
This transform triggers on a *lot* of tests, hence the huge diffstat.
The changes are mostly jX to br %r14 -> bXr %r14.
Author: koriakin
Differential Revision: http://reviews.llvm.org/D17339
llvm-svn: 265689
Diffstat (limited to 'llvm/test/CodeGen/SystemZ/strcmp-01.ll')
| -rw-r--r-- | llvm/test/CodeGen/SystemZ/strcmp-01.ll | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/llvm/test/CodeGen/SystemZ/strcmp-01.ll b/llvm/test/CodeGen/SystemZ/strcmp-01.ll index 122c160baba..a30663a13f1 100644 --- a/llvm/test/CodeGen/SystemZ/strcmp-01.ll +++ b/llvm/test/CodeGen/SystemZ/strcmp-01.ll @@ -28,7 +28,7 @@ define void @f2(i8 *%src1, i8 *%src2, i32 *%dest) { ; CHECK: clst %r2, %r3 ; CHECK-NEXT: jo [[LABEL]] ; CHECK-NEXT: BB#{{[0-9]+}} -; CHECK-NEXT: je {{\.L.*}} +; CHECK-NEXT: ber %r14 ; CHECK: br %r14 %res = call i32 @strcmp(i8 *%src1, i8 *%src2) %cmp = icmp eq i32 %res, 0 @@ -54,7 +54,7 @@ define i32 @f3(i8 *%src1, i8 *%src2, i32 *%dest) { ; CHECK-NEXT: ipm [[REG:%r[0-5]]] ; CHECK: srl [[REG]], 28 ; CHECK: rll %r2, [[REG]], 31 -; CHECK: jl {{\.L*}} +; CHECK: blr %r14 ; CHECK: br %r14 entry: %res = call i32 @strcmp(i8 *%src1, i8 *%src2) |
