34 lines
1.1 KiB
LLVM
34 lines
1.1 KiB
LLVM
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; RUN: opt -instcombine -S < %s | FileCheck %s
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; RUN: opt -debugify-each -instcombine -S < %s | FileCheck %s
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; These are both direct calls, but make sure instcombine leaves the casts
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; alone.
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define i32 @call_thunk(i32 %x, i32 %y) {
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%r = call i32 bitcast (void (i32, ...)* @inc_first_arg_thunk to i32 (i32, i32)*)(i32 %x, i32 %y)
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ret i32 %r
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}
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; CHECK-LABEL: define i32 @call_thunk(i32 %x, i32 %y)
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; CHECK: %r = call i32 bitcast (void (i32, ...)* @inc_first_arg_thunk to i32 (i32, i32)*)(i32 %x, i32 %y)
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; CHECK: ret i32 %r
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define internal void @inc_first_arg_thunk(i32 %arg1, ...) #0 {
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entry:
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%inc = add i32 %arg1, 1
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musttail call void (i32, ...) bitcast (i32 (i32, i32)* @plus to void (i32, ...)*)(i32 %inc, ...)
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ret void
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}
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; CHECK-LABEL: define internal void @inc_first_arg_thunk(i32 %arg1, ...) #0
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; CHECK: %inc = add i32 %arg1, 1
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; CHECK: musttail call void (i32, ...) bitcast (i32 (i32, i32)* @plus to void (i32, ...)*)(i32 %inc, ...)
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; CHECK: ret void
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define internal i32 @plus(i32 %x, i32 %y) {
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%r = add i32 %x, %y
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ret i32 %r
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}
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attributes #0 = { "thunk" }
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