ab7dba233a
Currently, the builtins used for implementing `va_list` handling unconditionally take their arguments as unqualified `ptr`s i.e. pointers to AS 0. This does not work for targets where the default AS is not 0 or AS 0 is not a viable AS (for example, a target might choose 0 to represent the constant address space). This patch changes the builtins' signature to take generic `anyptr` args, which corrects this issue. It is noisy due to the number of tests affected. A test for an upstream target which does not use 0 as its default AS (SPIRV for HIP device compilations) is added as well.
35 lines
965 B
LLVM
35 lines
965 B
LLVM
; RUN: llvm-dis < %s.bc| FileCheck %s
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; RUN: verify-uselistorder < %s.bc
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; vaArgIntrinsic.3.2.ll.bc was generated by passing this file to llvm-as-3.2.
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; The test checks that LLVM does not misread variable argument intrinsic instructions
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; of older bitcode files.
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define i32 @varArgIntrinsic(i32 %X, ...) {
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%ap = alloca i8*
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%ap2 = bitcast i8** %ap to i8*
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; CHECK: call void @llvm.va_start.p0(ptr %ap2)
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call void @llvm.va_start(i8* %ap2)
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; CHECK-NEXT: %tmp = va_arg ptr %ap, i32
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%tmp = va_arg i8** %ap, i32
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%aq = alloca i8*
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%aq2 = bitcast i8** %aq to i8*
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; CHECK: call void @llvm.va_copy.p0(ptr %aq2, ptr %ap2)
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call void @llvm.va_copy(i8* %aq2, i8* %ap2)
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; CHECK-NEXT: call void @llvm.va_end.p0(ptr %aq2)
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call void @llvm.va_end(i8* %aq2)
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; CHECK-NEXT: call void @llvm.va_end.p0(ptr %ap2)
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call void @llvm.va_end(i8* %ap2)
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ret i32 %tmp
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}
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declare void @llvm.va_start(i8*)
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declare void @llvm.va_copy(i8*, i8*)
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declare void @llvm.va_end(i8*)
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