6d242914d7
The test added in #73511 currently fails in CLANG_DEFAULT_PIE_ON_LINUX=OFF configuration, because it uses the clang driver in a codegen test. Split the test into two, a driver test that checks that the appropriate target feature is passed, and a codegen test that uses cc1.
111 lines
4.8 KiB
C
111 lines
4.8 KiB
C
// RUN: %clang_cc1 -triple s390x-linux-gnu %s -o - -emit-llvm \
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// RUN: | FileCheck %s -check-prefixes=CHECK,ALIGNED
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// RUN: %clang_cc1 -triple s390x-linux-gnu %s -o - -emit-llvm \
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// RUN: -target-feature -unaligned-symbols | FileCheck %s -check-prefixes=CHECK,ALIGNED
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// RUN: %clang_cc1 -triple s390x-linux-gnu %s -o - -emit-llvm \
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// RUN: -target-feature +unaligned-symbols | FileCheck %s -check-prefixes=CHECK,UNALIGN
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// With -munaligned-symbols, the external and unaligned ("ExtUnal...")
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// variable of each test should be treated as unaligned. For the explicitly
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// aligned ("ExtExplAlign...") variables and those defined in the translation
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// unit ("Aligned..."), the normal ABI alignment of 2 should still be
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// in effect.
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// ALIGNED: @ExtUnal = external global i8, align 2
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// UNALIGN: @ExtUnal = external global i8, align 1
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// CHECK: @ExtExplAlign = external global i8, align 2
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// CHECK: @Aligned = {{(dso_local )?}}global i8 0, align 2
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extern unsigned char ExtUnal;
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extern unsigned char ExtExplAlign __attribute__((aligned(2)));
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unsigned char Aligned;
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unsigned char foo0 () {
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return ExtUnal + ExtExplAlign + Aligned;
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}
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// ALIGNED: @ExtUnal_c2Arr = external global [2 x i8], align 2
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// UNALIGN: @ExtUnal_c2Arr = external global [2 x i8], align 1
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// CHECK: @ExtExplAlign_c2Arr = external global [2 x i8], align 2
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// CHECK: @Aligned_c2Arr = {{(dso_local )?}}global [2 x i8] zeroinitializer, align 2
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extern unsigned char ExtUnal_c2Arr[2];
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extern unsigned char ExtExplAlign_c2Arr[2] __attribute__((aligned(2)));
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unsigned char Aligned_c2Arr[2];
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unsigned char foo1 () {
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return ExtUnal_c2Arr[0] + ExtExplAlign_c2Arr[0] + Aligned_c2Arr[0];
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}
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// ALIGNED: @ExtUnal_s1c = external global %struct.s1c, align 2
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// UNALIGN: @ExtUnal_s1c = external global %struct.s1c, align 1
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// CHECK: @ExtExplAlign_s1c = external global %struct.s1c, align 2
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// CHECK: @Aligned_s1c = {{(dso_local )?}}global %struct.s1c zeroinitializer, align 2
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struct s1c { char c; };
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extern struct s1c ExtUnal_s1c;
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extern struct s1c ExtExplAlign_s1c __attribute__((aligned(2)));
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struct s1c Aligned_s1c;
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unsigned char foo2 () {
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return ExtUnal_s1c.c + ExtExplAlign_s1c.c + Aligned_s1c.c;
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}
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// ALIGNED: @ExtUnal_s2c = external global %struct.s2c, align 2
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// UNALIGN: @ExtUnal_s2c = external global %struct.s2c, align 1
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// CHECK: @ExtExplAlign_s2c = external global %struct.s2c, align 2
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// CHECK: @Aligned_s2c = {{(dso_local )?}}global %struct.s2c zeroinitializer, align 2
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struct s2c { char c; char c1;};
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extern struct s2c ExtUnal_s2c;
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extern struct s2c ExtExplAlign_s2c __attribute__((aligned(2)));
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struct s2c Aligned_s2c;
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unsigned char foo3 () {
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return ExtUnal_s2c.c + ExtExplAlign_s2c.c + Aligned_s2c.c;
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}
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// ALIGNED: @ExtUnal_s_c2Arr = external global %struct.s_c2Arr, align 2
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// UNALIGN: @ExtUnal_s_c2Arr = external global %struct.s_c2Arr, align 1
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// CHECK: @ExtExplAlign_s_c2Arr = external global %struct.s_c2Arr, align 2
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// CHECK: @Aligned_s_c2Arr = {{(dso_local )?}}global %struct.s_c2Arr zeroinitializer, align 2
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struct s_c2Arr { char c[2]; };
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extern struct s_c2Arr ExtUnal_s_c2Arr;
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extern struct s_c2Arr ExtExplAlign_s_c2Arr __attribute__((aligned(2)));
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struct s_c2Arr Aligned_s_c2Arr;
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unsigned char foo4 () {
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return ExtUnal_s_c2Arr.c[0] + ExtExplAlign_s_c2Arr.c[0] + Aligned_s_c2Arr.c[0];
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}
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// ALIGNED: @ExtUnal_s_packed = external global %struct.s_packed, align 2
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// UNALIGN: @ExtUnal_s_packed = external global %struct.s_packed, align 1
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// CHECK: @ExtExplAlign_s_packed = external global %struct.s_packed, align 2
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// CHECK: @Aligned_s_packed = {{(dso_local )?}}global %struct.s_packed zeroinitializer, align 2
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struct s_packed {
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int __attribute__((__packed__)) i;
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char c;
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};
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extern struct s_packed ExtUnal_s_packed;
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extern struct s_packed ExtExplAlign_s_packed __attribute__((aligned(2)));
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struct s_packed Aligned_s_packed;
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unsigned char foo5 () {
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return ExtUnal_s_packed.c + ExtExplAlign_s_packed.c + Aligned_s_packed.c;
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}
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// ALIGNED: @ExtUnAl_s_nested = external global [2 x %struct.s_nested], align 2
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// UNALIGN: @ExtUnAl_s_nested = external global [2 x %struct.s_nested], align 1
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// CHECK: @ExtExplAlign_s_nested = external global [2 x %struct.s_nested], align 2
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// CHECK: @Aligned_s_nested = {{(dso_local )?}}global [2 x %struct.s_nested] zeroinitializer, align 2
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struct s_nested { struct s_c2Arr a[2]; };
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extern struct s_nested ExtUnAl_s_nested[2];
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extern struct s_nested ExtExplAlign_s_nested[2] __attribute__((aligned(2)));
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struct s_nested Aligned_s_nested[2];
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unsigned char foo6 () {
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return ExtUnAl_s_nested[0].a[0].c[0] + ExtExplAlign_s_nested[0].a[0].c[0] +
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Aligned_s_nested[0].a[0].c[0];
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}
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// A weak symbol could be replaced with an unaligned one at link time.
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// CHECK-LABEL: foo7
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// ALIGNED: load i8, ptr @Weaksym, align 2
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// UNALIGN: load i8, ptr @Weaksym, align 1
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unsigned char __attribute__((weak)) Weaksym = 0;
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unsigned char foo7 () {
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return Weaksym;
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}
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