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.
39 lines
1.5 KiB
LLVM
39 lines
1.5 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --function-signature
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; RUN: opt -passes=globalopt -S < %s | FileCheck %s
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define i32 @main(ptr %a) {
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; CHECK-LABEL: define {{[^@]+}}@main
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; CHECK-SAME: (ptr [[A:%.*]]) local_unnamed_addr {
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; CHECK-NEXT: [[ARGMEM:%.*]] = alloca inalloca <{ ptr, i32 }>, align 4
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; CHECK-NEXT: store ptr [[A]], ptr [[ARGMEM]], align 8
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; CHECK-NEXT: [[G0:%.*]] = getelementptr inbounds <{ ptr, i32 }>, ptr [[ARGMEM]], i32 0, i32 1
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; CHECK-NEXT: store i32 5, ptr [[G0]], align 4
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; CHECK-NEXT: [[CALL3:%.*]] = call i32 (ptr, ...) @i(ptr inalloca(ptr) [[ARGMEM]])
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; CHECK-NEXT: ret i32 [[CALL3]]
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;
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%argmem = alloca inalloca <{ ptr, i32 }>, align 4
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store ptr %a, ptr %argmem, align 8
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%g0 = getelementptr inbounds <{ ptr, i32 }>, ptr %argmem, i32 0, i32 1
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store i32 5, ptr %g0, align 4
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%call3 = call i32 (ptr, ...) @i(ptr inalloca(ptr) %argmem)
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ret i32 %call3
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}
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define internal i32 @i(ptr inalloca(ptr) %a, ...) {
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; CHECK-LABEL: define {{[^@]+}}@i
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; CHECK-SAME: (ptr inalloca(ptr) [[A:%.*]], ...) unnamed_addr {
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; CHECK-NEXT: [[AP:%.*]] = alloca ptr, align 4
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; CHECK-NEXT: call void @llvm.va_start.p0(ptr [[AP]])
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; CHECK-NEXT: [[ARGP_CUR:%.*]] = load ptr, ptr [[AP]], align 4
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; CHECK-NEXT: [[L:%.*]] = load i32, ptr [[ARGP_CUR]], align 4
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; CHECK-NEXT: ret i32 [[L]]
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;
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%ap = alloca ptr, align 4
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call void @llvm.va_start(ptr %ap)
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%argp.cur = load ptr, ptr %ap, align 4
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%l = load i32, ptr %argp.cur, align 4
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ret i32 %l
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}
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declare void @llvm.va_start(ptr)
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