116 lines
3.8 KiB
C++
116 lines
3.8 KiB
C++
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// RUN: %clang_cc1 -malign-double -triple i386-unknown-linux -emit-llvm %s -o - \
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// RUN: | FileCheck --check-prefix=CHECK-ON --check-prefix=CHECK %s
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// RUN: %clang_cc1 -triple i386-unknown-linux -emit-llvm %s -o - \
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// RUN: | FileCheck --check-prefix=CHECK-OFF --check-prefix=CHECK %s
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/* Structs S1, S2, S3, S4, and union U5 are taken from Intel, "IA-64
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Software Conventions and Runtime Architecture Guide", version of
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August 1999, Section 4.2, Figures 4-1 through 4-5.
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A Union containing a double was also thrown in for good measure. */
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struct S1 {
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char c;
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};
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unsigned S1_align = __alignof(struct S1);
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unsigned S1_size = sizeof(struct S1);
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// CHECK: @S1_align ={{.*}} global i32 1, align 4
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// CHECK: @S1_size ={{.*}} global i32 1, align 4
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unsigned S1_c_offset = (unsigned) &((struct S1*) 0)->c;
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// CHECK: @S1_c_offset ={{.*}} global i32 0, align 4
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struct S2{
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char c;
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char d;
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short s;
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int n;
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};
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unsigned S2_align = __alignof(struct S2);
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unsigned S2_size = sizeof(struct S2);
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// CHECK: @S2_align ={{.*}} global i32 4, align 4
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// CHECK: @S2_size ={{.*}} global i32 8, align 4
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unsigned S2_c_offset = (unsigned) &((struct S2*) 0)->c;
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unsigned S2_d_offset = (unsigned) &((struct S2*) 0)->d;
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unsigned S2_s_offset = (unsigned) &((struct S2*) 0)->s;
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unsigned S2_n_offset = (unsigned) &((struct S2*) 0)->n;
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// CHECK: @S2_c_offset ={{.*}} global i32 0, align 4
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// CHECK: @S2_d_offset ={{.*}} global i32 1, align 4
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// CHECK: @S2_s_offset ={{.*}} global i32 2, align 4
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// CHECK: @S2_n_offset ={{.*}} global i32 4, align 4
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struct S3 {
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char c;
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short s;
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};
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unsigned S3_align = __alignof(struct S3);
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unsigned S3_size = sizeof(struct S3);
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// CHECK: @S3_align ={{.*}} global i32 2, align 4
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// CHECK: @S3_size ={{.*}} global i32 4, align 4
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unsigned S3_c_offset = (unsigned) &((struct S3*) 0)->c;
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unsigned S3_s_offset = (unsigned) &((struct S3*) 0)->s;
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// CHECK: @S3_c_offset ={{.*}} global i32 0, align 4
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// CHECK: @S3_s_offset ={{.*}} global i32 2, align 4
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struct S4 {
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char c;
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double d;
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short s;
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};
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unsigned S4_align = __alignof(struct S4);
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unsigned S4_size = sizeof(struct S4);
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// CHECK-ON: @S4_align ={{.*}} global i32 8, align 4
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// CHECK-ON: @S4_size ={{.*}} global i32 24, align 4
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// CHECK-OFF: @S4_align ={{.*}} global i32 4, align 4
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// CHECK-OFF: @S4_size ={{.*}} global i32 16, align 4
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unsigned S4_c_offset = (unsigned) &((struct S4*) 0)->c;
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unsigned S4_d_offset = (unsigned) &((struct S4*) 0)->d;
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unsigned S4_s_offset = (unsigned) &((struct S4*) 0)->s;
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// CHECK: @S4_c_offset ={{.*}} global i32 0, align 4
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// CHECK-ON: @S4_d_offset ={{.*}} global i32 8, align 4
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// CHECK-ON: @S4_s_offset ={{.*}} global i32 16, align 4
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// CHECK-OFF: @S4_d_offset ={{.*}} global i32 4, align 4
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// CHECK-OFF: @S4_s_offset ={{.*}} global i32 12, align 4
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union S5 {
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char c;
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short s;
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int j;
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};
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unsigned S5_align = __alignof(union S5);
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unsigned S5_size = sizeof(union S5);
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// CHECK: @S5_align ={{.*}} global i32 4, align 4
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// CHECK: @S5_size ={{.*}} global i32 4, align 4
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unsigned S5_c_offset = (unsigned) &((union S5*) 0)->c;
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unsigned S5_s_offset = (unsigned) &((union S5*) 0)->s;
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unsigned S5_j_offset = (unsigned) &((union S5*) 0)->j;
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// CHECK: @S5_c_offset ={{.*}} global i32 0, align 4
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// CHECK: @S5_s_offset ={{.*}} global i32 0, align 4
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// CHECK: @S5_j_offset ={{.*}} global i32 0, align 4
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union S6 {
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char c;
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double d;
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};
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unsigned S6_align = __alignof(union S6);
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unsigned S6_size = sizeof(union S6);
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// CHECK-ON: @S6_align ={{.*}} global i32 8, align 4
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// CHECK-ON: @S6_size ={{.*}} global i32 8, align 4
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// CHECK-OFF: @S6_align ={{.*}} global i32 4, align 4
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// CHECK-OFF: @S6_size ={{.*}} global i32 8, align 4
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unsigned S6_c_offset = (unsigned) &((union S6*) 0)->c;
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unsigned S6_d_offset = (unsigned) &((union S6*) 0)->d;
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// CHECK: @S6_c_offset ={{.*}} global i32 0, align 4
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// CHECK: @S6_d_offset ={{.*}} global i32 0, align 4
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