llvm-for-llvmta/test/CodeGen/Mips/Fast-ISel/mul1.ll

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539 B
LLVM

; RUN: llc < %s -march=mipsel -mcpu=mips32 -O0 -relocation-model=pic
; RUN: llc < %s -march=mipsel -mcpu=mips32r2 -O0 -relocation-model=pic
; The test is just to make sure it is able to allocate
; registers for this example. There was an issue with allocating AC0
; after a mul instruction.
declare { i32, i1 } @llvm.smul.with.overflow.i32(i32, i32)
define i32 @foo(i32 %a, i32 %b) {
entry:
%0 = mul i32 %a, %b
%1 = call { i32, i1 } @llvm.smul.with.overflow.i32(i32 %0, i32 %b)
%2 = extractvalue { i32, i1 } %1, 0
ret i32 %2
}