6e938effaa
Summary: Upstream LLVM is changing the the prototypes of the @llvm.memcpy/memmove/memset intrinsics. This change updates the Clang tests for this change. The @llvm.memcpy/memmove/memset intrinsics currently have an explicit argument which is required to be a constant integer. It represents the alignment of the dest (and source), and so must be the minimum of the actual alignment of the two. This change removes the alignment argument in favour of placing the alignment attribute on the source and destination pointers of the memory intrinsic call. For example, code which used to read: call void @llvm.memcpy.p0i8.p0i8.i32(i8* %dest, i8* %src, i32 100, i32 4, i1 false) will now read call void @llvm.memcpy.p0i8.p0i8.i32(i8* align 4 %dest, i8* align 4 %src, i32 100, i1 false) At this time the source and destination alignments must be the same (Step 1). Step 2 of the change, to be landed shortly, will relax that contraint and allow the source and destination to have different alignments. llvm-svn: 322964
143 lines
6.0 KiB
C
143 lines
6.0 KiB
C
// REQUIRES: xcore-registered-target
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// RUN: %clang_cc1 -triple xcore -verify %s
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_Static_assert(sizeof(long long) == 8, "sizeof long long is wrong");
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_Static_assert(_Alignof(long long) == 4, "alignof long long is wrong");
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_Static_assert(sizeof(double) == 8, "sizeof double is wrong");
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_Static_assert(_Alignof(double) == 4, "alignof double is wrong");
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// RUN: %clang_cc1 -triple xcore-unknown-unknown -fno-signed-char -fno-common -emit-llvm -o - %s | FileCheck %s
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// CHECK: target triple = "xcore-unknown-unknown"
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// CHECK: @cgx = external constant i32, section ".cp.rodata"
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extern const int cgx;
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int fcgx() { return cgx;}
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// CHECK: @g1 = global i32 0, align 4
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int g1;
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// CHECK: @cg1 = constant i32 0, section ".cp.rodata", align 4
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const int cg1;
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#include <stdarg.h>
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struct x { int a[5]; };
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void f(void*);
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void testva (int n, ...) {
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// CHECK-LABEL: testva
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va_list ap;
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va_start(ap,n);
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// CHECK: [[AP:%[a-z0-9]+]] = alloca i8*, align 4
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// CHECK: [[AP1:%[a-z0-9]+]] = bitcast i8** [[AP]] to i8*
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// CHECK: call void @llvm.va_start(i8* [[AP1]])
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char* v1 = va_arg (ap, char*);
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f(v1);
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// CHECK: [[I:%[a-z0-9]+]] = load i8*, i8** [[AP]]
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// CHECK: [[P:%[a-z0-9]+]] = bitcast i8* [[I]] to i8**
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// CHECK: [[IN:%[a-z0-9]+]] = getelementptr inbounds i8, i8* [[I]], i32 4
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// CHECK: store i8* [[IN]], i8** [[AP]]
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// CHECK: [[V1:%[a-z0-9]+]] = load i8*, i8** [[P]]
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// CHECK: store i8* [[V1]], i8** [[V:%[a-z0-9]+]], align 4
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// CHECK: [[V2:%[a-z0-9]+]] = load i8*, i8** [[V]], align 4
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// CHECK: call void @f(i8* [[V2]])
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char v2 = va_arg (ap, char); // expected-warning{{second argument to 'va_arg' is of promotable type 'char'}}
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f(&v2);
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// CHECK: [[I:%[a-z0-9]+]] = load i8*, i8** [[AP]]
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// CHECK: [[IN:%[a-z0-9]+]] = getelementptr inbounds i8, i8* [[I]], i32 4
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// CHECK: store i8* [[IN]], i8** [[AP]]
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// CHECK: [[V1:%[a-z0-9]+]] = load i8, i8* [[I]]
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// CHECK: store i8 [[V1]], i8* [[V:%[a-z0-9]+]], align 1
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// CHECK: call void @f(i8* [[V]])
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int v3 = va_arg (ap, int);
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f(&v3);
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// CHECK: [[I:%[a-z0-9]+]] = load i8*, i8** [[AP]]
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// CHECK: [[P:%[a-z0-9]+]] = bitcast i8* [[I]] to i32*
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// CHECK: [[IN:%[a-z0-9]+]] = getelementptr inbounds i8, i8* [[I]], i32 4
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// CHECK: store i8* [[IN]], i8** [[AP]]
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// CHECK: [[V1:%[a-z0-9]+]] = load i32, i32* [[P]]
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// CHECK: store i32 [[V1]], i32* [[V:%[a-z0-9]+]], align 4
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// CHECK: [[V2:%[a-z0-9]+]] = bitcast i32* [[V]] to i8*
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// CHECK: call void @f(i8* [[V2]])
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long long int v4 = va_arg (ap, long long int);
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f(&v4);
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// CHECK: [[I:%[a-z0-9]+]] = load i8*, i8** [[AP]]
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// CHECK: [[P:%[a-z0-9]+]] = bitcast i8* [[I]] to i64*
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// CHECK: [[IN:%[a-z0-9]+]] = getelementptr inbounds i8, i8* [[I]], i32 8
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// CHECK: store i8* [[IN]], i8** [[AP]]
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// CHECK: [[V1:%[a-z0-9]+]] = load i64, i64* [[P]]
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// CHECK: store i64 [[V1]], i64* [[V:%[a-z0-9]+]], align 4
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// CHECK:[[V2:%[a-z0-9]+]] = bitcast i64* [[V]] to i8*
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// CHECK: call void @f(i8* [[V2]])
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struct x v5 = va_arg (ap, struct x); // typical aggregate type
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f(&v5);
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// CHECK: [[I:%[a-z0-9]+]] = load i8*, i8** [[AP]]
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// CHECK: [[I2:%[a-z0-9]+]] = bitcast i8* [[I]] to %struct.x**
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// CHECK: [[P:%[a-z0-9]+]] = load %struct.x*, %struct.x** [[I2]]
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// CHECK: [[IN:%[a-z0-9]+]] = getelementptr inbounds i8, i8* [[I]], i32 4
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// CHECK: store i8* [[IN]], i8** [[AP]]
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// CHECK: [[V1:%[a-z0-9]+]] = bitcast %struct.x* [[V:%[a-z0-9]+]] to i8*
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// CHECK: [[P1:%[a-z0-9]+]] = bitcast %struct.x* [[P]] to i8*
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// CHECK: call void @llvm.memcpy.p0i8.p0i8.i32(i8* align 4 [[V1]], i8* align 4 [[P1]], i32 20, i1 false)
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// CHECK: [[V2:%[a-z0-9]+]] = bitcast %struct.x* [[V]] to i8*
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// CHECK: call void @f(i8* [[V2]])
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int* v6 = va_arg (ap, int[4]); // an unusual aggregate type
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f(v6);
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// CHECK: [[I:%[a-z0-9]+]] = load i8*, i8** [[AP]]
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// CHECK: [[I2:%[a-z0-9]+]] = bitcast i8* [[I]] to [4 x i32]**
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// CHECK: [[P:%[a-z0-9]+]] = load [4 x i32]*, [4 x i32]** [[I2]]
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// CHECK: [[IN:%[a-z0-9]+]] = getelementptr inbounds i8, i8* [[I]], i32 4
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// CHECK: store i8* [[IN]], i8** [[AP]]
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// CHECK: [[V1:%[a-z0-9]+]] = bitcast [4 x i32]* [[V0:%[a-z0-9]+]] to i8*
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// CHECK: [[P1:%[a-z0-9]+]] = bitcast [4 x i32]* [[P]] to i8*
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// CHECK: call void @llvm.memcpy.p0i8.p0i8.i32(i8* align 4 [[V1]], i8* align 4 [[P1]], i32 16, i1 false)
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// CHECK: [[V2:%[a-z0-9]+]] = getelementptr inbounds [4 x i32], [4 x i32]* [[V0]], i32 0, i32 0
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// CHECK: store i32* [[V2]], i32** [[V:%[a-z0-9]+]], align 4
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// CHECK: [[V3:%[a-z0-9]+]] = load i32*, i32** [[V]], align 4
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// CHECK: [[V4:%[a-z0-9]+]] = bitcast i32* [[V3]] to i8*
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// CHECK: call void @f(i8* [[V4]])
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double v7 = va_arg (ap, double);
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f(&v7);
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// CHECK: [[I:%[a-z0-9]+]] = load i8*, i8** [[AP]]
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// CHECK: [[P:%[a-z0-9]+]] = bitcast i8* [[I]] to double*
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// CHECK: [[IN:%[a-z0-9]+]] = getelementptr inbounds i8, i8* [[I]], i32 8
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// CHECK: store i8* [[IN]], i8** [[AP]]
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// CHECK: [[V1:%[a-z0-9]+]] = load double, double* [[P]]
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// CHECK: store double [[V1]], double* [[V:%[a-z0-9]+]], align 4
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// CHECK: [[V2:%[a-z0-9]+]] = bitcast double* [[V]] to i8*
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// CHECK: call void @f(i8* [[V2]])
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}
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void testbuiltin (void) {
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// CHECK-LABEL: testbuiltin
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// CHECK: call i32 @llvm.xcore.getid()
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// CHECK: call i32 @llvm.xcore.getps(i32 {{%[a-z0-9]+}})
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// CHECK: call i32 @llvm.xcore.bitrev(i32 {{%[a-z0-9]+}})
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// CHECK: call void @llvm.xcore.setps(i32 {{%[a-z0-9]+}}, i32 {{%[a-z0-9]+}})
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volatile int i = __builtin_getid();
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volatile unsigned int ui = __builtin_getps(i);
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ui = __builtin_bitrev(ui);
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__builtin_setps(i,ui);
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// CHECK: store volatile i32 0, i32* {{%[a-z0-9]+}}, align 4
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// CHECK: store volatile i32 1, i32* {{%[a-z0-9]+}}, align 4
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// CHECK: store volatile i32 -1, i32* {{%[a-z0-9]+}}, align 4
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volatile int res;
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res = __builtin_eh_return_data_regno(0);
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res = __builtin_eh_return_data_regno(1);
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res = __builtin_eh_return_data_regno(2);
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}
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// CHECK-LABEL: define zeroext i8 @testchar()
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// CHECK: ret i8 -1
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char testchar (void) {
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return (char)-1;
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}
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// CHECK: "no-frame-pointer-elim"="false"
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// CHECK-NOT: "no-frame-pointer-elim-non-leaf"
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