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| author | Dan Gohman <sunfish@mozilla.com> | 2014-03-05 18:58:45 -0800 |
|---|---|---|
| committer | Dan Gohman <sunfish@mozilla.com> | 2014-03-05 19:00:38 -0800 |
| commit | 95cd3de38a4d21056e90608b8553e1fda1363c12 (patch) | |
| tree | 2db3b0331fa1866781a18c36a371ed00c97516a8 /test | |
| parent | 8346647dd5ddc2d1f379cc530b20494a41e6ef31 (diff) | |
Tidy up the output for memset and memcpy, and add a test.
Diffstat (limited to 'test')
| -rw-r--r-- | test/CodeGen/JS/mem-intrinsics.ll | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/test/CodeGen/JS/mem-intrinsics.ll b/test/CodeGen/JS/mem-intrinsics.ll new file mode 100644 index 0000000000..2fb834beaa --- /dev/null +++ b/test/CodeGen/JS/mem-intrinsics.ll @@ -0,0 +1,36 @@ +; RUN: llc -march=js < %s | FileCheck %s + +; llc should emit small aligned memcpy and memset inline. + +; CHECK: test_unrolled_memcpy +; CHECK: HEAP32[$d+0>>2]=HEAP32[$s+0>>2]|0;HEAP32[$d+4>>2]=HEAP32[$s+4>>2]|0;HEAP32[$d+8>>2]=HEAP32[$s+8>>2]|0;HEAP32[$d+12>>2]=HEAP32[$s+12>>2]|0;HEAP32[$d+16>>2]=HEAP32[$s+16>>2]|0;HEAP32[$d+20>>2]=HEAP32[$s+20>>2]|0;HEAP32[$d+24>>2]=HEAP32[$s+24>>2]|0;HEAP32[$d+28>>2]=HEAP32[$s+28>>2]|0; +define void @test_unrolled_memcpy(i8* %d, i8* %s) { + call void @llvm.memcpy.p0i8.p0i8.i32(i8* %d, i8* %s, i32 32, i32 4, i1 false) + ret void +} + +; CHECK: test_loop_memcpy +; CHECK: dest=$d+0|0; src=$s+0|0; stop=dest+64|0; do { HEAP32[dest>>2]=HEAP32[src>>2]|0; dest=dest+4|0; src=src+4|0; } while ((dest|0) < (stop|0)) +define void @test_loop_memcpy(i8* %d, i8* %s) { + call void @llvm.memcpy.p0i8.p0i8.i32(i8* %d, i8* %s, i32 64, i32 4, i1 false) + ret void +} + +; CHECK: test_unrolled_memset +; CHECK: HEAP32[$d+0>>2]=0|0;HEAP32[$d+4>>2]=0|0;HEAP32[$d+8>>2]=0|0;HEAP32[$d+12>>2]=0|0;HEAP32[$d+16>>2]=0|0;HEAP32[$d+20>>2]=0|0;HEAP32[$d+24>>2]=0|0;HEAP32[$d+28>>2]=0|0; +define void @test_unrolled_memset(i8* %d, i8* %s) { + call void @llvm.memset.p0i8.i32(i8* %d, i8 0, i32 32, i32 4, i1 false) + ret void +} + +; CHECK: test_loop_memset +; CHECK: dest=$d+0|0; stop=dest+64|0; do { HEAP32[dest>>2]=0|0; dest=dest+4|0; } while ((dest|0) < (stop|0)); +define void @test_loop_memset(i8* %d, i8* %s) { + call void @llvm.memset.p0i8.i32(i8* %d, i8 0, i32 64, i32 4, i1 false) + ret void +} + +declare void @llvm.memcpy.p0i8.p0i8.i32(i8* nocapture, i8* nocapture, i32, i32, i1) #0 +declare void @llvm.memset.p0i8.i32(i8* nocapture, i8, i32, i32, i1) #0 + +attributes #0 = { nounwind } |