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| author | Dan Gohman <dan433584@gmail.com> | 2018-05-31 22:27:24 +0000 |
|---|---|---|
| committer | Dan Gohman <dan433584@gmail.com> | 2018-05-31 22:27:24 +0000 |
| commit | b17de645ea3b536ab3c12b3837fcca6ae25f0343 (patch) | |
| tree | 7fc8064f8bbc172b09d3bfbef6975e13c75fec96 /llvm/test/CodeGen/WebAssembly/muloti4.ll | |
| parent | 5ef4d5f9c1c18ea7e274172e6f43a23aa1b1da31 (diff) | |
| download | bcm5719-llvm-b17de645ea3b536ab3c12b3837fcca6ae25f0343.tar.gz bcm5719-llvm-b17de645ea3b536ab3c12b3837fcca6ae25f0343.zip | |
[WebAssembly] Fix the signatures for the __mulo* libcalls.
The __mulo* libcalls have an extra i32* to return the overflow value.
Fixes PR37401.
llvm-svn: 333706
Diffstat (limited to 'llvm/test/CodeGen/WebAssembly/muloti4.ll')
| -rw-r--r-- | llvm/test/CodeGen/WebAssembly/muloti4.ll | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/llvm/test/CodeGen/WebAssembly/muloti4.ll b/llvm/test/CodeGen/WebAssembly/muloti4.ll new file mode 100644 index 00000000000..1e403342869 --- /dev/null +++ b/llvm/test/CodeGen/WebAssembly/muloti4.ll @@ -0,0 +1,19 @@ +; RUN: llc -asm-verbose=false < %s | FileCheck %s + +; Test that 128-bit smul.with.overflow assembles as expected. + +target datalayout = "e-m:e-p:32:32-i64:64-n32:64-S128" +target triple = "wasm32-unknown-unknown" + +define i128 @call_muloti4(i128 %a, i128 %b) nounwind { +entry: + %smul = tail call { i128, i1 } @llvm.smul.with.overflow.i128(i128 %a, i128 %b) + %cmp = extractvalue { i128, i1 } %smul, 1 + %smul.result = extractvalue { i128, i1 } %smul, 0 + %X = select i1 %cmp, i128 %smul.result, i128 42 + ret i128 %X +} + +; CHECK: call __muloti4@FUNCTION, $pop{{[0-9]*}}, $pop{{[0-9]*}}, $pop{{[0-9]*}}, $pop{{[0-9]*}}, $pop{{[0-9]*}}, $pop{{[0-9]*}}{{$}} + +declare { i128, i1 } @llvm.smul.with.overflow.i128(i128, i128) nounwind readnone |
