forked from OSchip/llvm-project
49 lines
1.4 KiB
LLVM
49 lines
1.4 KiB
LLVM
; Test function specialization wouldn't crash due to constant expression.
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; Note that this test case shows that function specialization pass would
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; transform the function even if no specialization happened.
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; RUN: opt -function-specialization -S < %s | FileCheck %s
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; CHECK: plus:
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; CHECK-NEXT: %{{.*}} = call i64 @func2(i64* getelementptr inbounds (%struct, %struct* @Global, i32 0, i32 3))
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; CHECK: minus:
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; CHECK-NEXT: %{{.*}} = call i64 @func2(i64* getelementptr inbounds (%struct, %struct* @Global, i32 0, i32 4))
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%struct = type { i8, i16, i32, i64, i64}
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@Global = internal constant %struct {i8 0, i16 1, i32 2, i64 3, i64 4}
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define internal i64 @zoo(i1 %flag) {
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entry:
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br i1 %flag, label %plus, label %minus
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plus:
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%arg = getelementptr %struct, %struct* @Global, i32 0, i32 3
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%tmp0 = call i64 @func2(i64* %arg)
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br label %merge
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minus:
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%arg2 = getelementptr %struct, %struct* @Global, i32 0, i32 4
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%tmp1 = call i64 @func2(i64* %arg2)
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br label %merge
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merge:
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%tmp2 = phi i64 [ %tmp0, %plus ], [ %tmp1, %minus]
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ret i64 %tmp2
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}
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define internal i64 @func2(i64 *%x) {
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entry:
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%val = ptrtoint i64* %x to i64
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ret i64 %val
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}
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define internal i64 @func(i64 *%x, i64 (i64*)* %binop) {
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entry:
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%tmp0 = call i64 %binop(i64* %x)
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ret i64 %tmp0
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}
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define i64 @main() {
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%1 = call i64 @zoo(i1 0)
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%2 = call i64 @zoo(i1 1)
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%3 = add i64 %1, %2
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ret i64 %3
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} |