diff options
| author | Stephen Hines <srhines@google.com> | 2014-12-01 14:51:49 -0800 |
|---|---|---|
| committer | Stephen Hines <srhines@google.com> | 2014-12-02 16:08:10 -0800 |
| commit | 37ed9c199ca639565f6ce88105f9e39e898d82d0 (patch) | |
| tree | 8fb36d3910e3ee4c4e1b7422f4f017108efc52f5 /test/CodeGen/X86/peephole-fold-movsd.ll | |
| parent | d2327b22152ced7bc46dc629fc908959e8a52d03 (diff) | |
| download | external_llvm-37ed9c199ca639565f6ce88105f9e39e898d82d0.zip external_llvm-37ed9c199ca639565f6ce88105f9e39e898d82d0.tar.gz external_llvm-37ed9c199ca639565f6ce88105f9e39e898d82d0.tar.bz2 | |
Update aosp/master LLVM for rebase to r222494.
Change-Id: Ic787f5e0124df789bd26f3f24680f45e678eef2d
Diffstat (limited to 'test/CodeGen/X86/peephole-fold-movsd.ll')
| -rw-r--r-- | test/CodeGen/X86/peephole-fold-movsd.ll | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/test/CodeGen/X86/peephole-fold-movsd.ll b/test/CodeGen/X86/peephole-fold-movsd.ll new file mode 100644 index 0000000..09d9328 --- /dev/null +++ b/test/CodeGen/X86/peephole-fold-movsd.ll @@ -0,0 +1,31 @@ +; RUN: llc -mtriple=x86_64-pc-linux < %s | FileCheck %s +; +; Check that x86's peephole optimization doesn't fold a 64-bit load (movsd) into +; addpd. +; rdar://problem/18236850 + +%struct.S1 = type { double, double } + +@g = common global %struct.S1 zeroinitializer, align 8 + +declare void @foo3(%struct.S1*) + +; CHECK: movsd {{[0-9]*}}(%rsp), [[R0:%xmm[0-9]+]] +; CHECK: addpd [[R0]], %xmm{{[0-9]+}} + +define void @foo1(double %a.coerce0, double %a.coerce1, double %b.coerce0, double %b.coerce1) { + %1 = alloca <2 x double>, align 16 + %tmpcast = bitcast <2 x double>* %1 to %struct.S1* + call void @foo3(%struct.S1* %tmpcast) #2 + %p2 = getelementptr inbounds %struct.S1* %tmpcast, i64 0, i32 0 + %2 = load double* %p2, align 16 + %p3 = getelementptr inbounds %struct.S1* %tmpcast, i64 0, i32 1 + %3 = load double* %p3, align 8 + %4 = insertelement <2 x double> undef, double %2, i32 0 + %5 = insertelement <2 x double> %4, double 0.000000e+00, i32 1 + %6 = insertelement <2 x double> undef, double %3, i32 1 + %7 = insertelement <2 x double> %6, double 1.000000e+00, i32 0 + %8 = fadd <2 x double> %5, %7 + store <2 x double> %8, <2 x double>* bitcast (%struct.S1* @g to <2 x double>*), align 16 + ret void +} |