diff options
Diffstat (limited to 'llvm/test/CodeGen/PowerPC/memcmp-mergeexpand.ll')
| -rw-r--r-- | llvm/test/CodeGen/PowerPC/memcmp-mergeexpand.ll | 50 |
1 files changed, 50 insertions, 0 deletions
diff --git a/llvm/test/CodeGen/PowerPC/memcmp-mergeexpand.ll b/llvm/test/CodeGen/PowerPC/memcmp-mergeexpand.ll new file mode 100644 index 00000000000..c87abbfa7be --- /dev/null +++ b/llvm/test/CodeGen/PowerPC/memcmp-mergeexpand.ll @@ -0,0 +1,50 @@ +; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py +; RUN: llc -verify-machineinstrs -mcpu=pwr8 -mtriple=powerpc64le-unknown-gnu-linux < %s | FileCheck %s -check-prefix=PPC64LE + +; This tests interaction between MergeICmp and ExpandMemCmp. + +%"struct.std::pair" = type { i32, i32 } + +define zeroext i1 @opeq1( +; PPC64LE-LABEL: opeq1: +; PPC64LE: # %bb.0: # %entry +; PPC64LE-NEXT: lwz 5, 0(3) +; PPC64LE-NEXT: lwz 6, 0(4) +; PPC64LE-NEXT: cmplw 5, 6 +; PPC64LE-NEXT: bne 0, .LBB0_2 +; PPC64LE-NEXT: # %bb.1: # %land.rhs.i +; PPC64LE-NEXT: lwz 3, 4(3) +; PPC64LE-NEXT: lwz 4, 4(4) +; PPC64LE-NEXT: cmpw 3, 4 +; PPC64LE-NEXT: b .LBB0_3 +; PPC64LE-NEXT: .LBB0_2: +; PPC64LE-NEXT: crxor 2, 2, 2 +; PPC64LE-NEXT: .LBB0_3: # %opeq1.exit +; PPC64LE-NEXT: li 3, 0 +; PPC64LE-NEXT: li 4, 1 +; PPC64LE-NEXT: isel 3, 4, 3, 2 +; PPC64LE-NEXT: blr + %"struct.std::pair"* nocapture readonly dereferenceable(8) %a, + %"struct.std::pair"* nocapture readonly dereferenceable(8) %b) local_unnamed_addr #0 { +entry: + %first.i = getelementptr inbounds %"struct.std::pair", %"struct.std::pair"* %a, i64 0, i32 0 + %0 = load i32, i32* %first.i, align 4 + %first1.i = getelementptr inbounds %"struct.std::pair", %"struct.std::pair"* %b, i64 0, i32 0 + %1 = load i32, i32* %first1.i, align 4 + %cmp.i = icmp eq i32 %0, %1 + br i1 %cmp.i, label %land.rhs.i, label %opeq1.exit + +land.rhs.i: + %second.i = getelementptr inbounds %"struct.std::pair", %"struct.std::pair"* %a, i64 0, i32 1 + %2 = load i32, i32* %second.i, align 4 + %second2.i = getelementptr inbounds %"struct.std::pair", %"struct.std::pair"* %b, i64 0, i32 1 + %3 = load i32, i32* %second2.i, align 4 + %cmp3.i = icmp eq i32 %2, %3 + br label %opeq1.exit + +opeq1.exit: + %4 = phi i1 [ false, %entry ], [ %cmp3.i, %land.rhs.i ] + ret i1 %4 +} + + |
