157 lines
6.4 KiB
C
157 lines
6.4 KiB
C
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// NOTE: Assertions have been autogenerated by utils/update_cc_test_checks.py
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// REQUIRES: x86-registered-target
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// RUN: %clang_cc1 -triple x86_64-pc-linux-gnu -O0 -emit-llvm %s -o - | FileCheck %s
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// CHECK-LABEL: @test0(
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// CHECK-NEXT: entry:
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// CHECK-NEXT: [[RET:%.*]] = alloca i32, align 4
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// CHECK-NEXT: [[TMP0:%.*]] = callbr i32 asm "", "=r,!i,~{dirflag},~{fpsr},~{flags}"() #[[ATTR1:[0-9]+]]
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// CHECK-NEXT: to label [[ASM_FALLTHROUGH:%.*]] [label %z.split], !srcloc !2
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// CHECK: asm.fallthrough:
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// CHECK-NEXT: store i32 [[TMP0]], ptr [[RET]], align 4
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// CHECK-NEXT: store i32 42, ptr [[RET]], align 4
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// CHECK-NEXT: br label [[Z:%.*]]
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// CHECK: z:
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// CHECK-NEXT: [[TMP1:%.*]] = load i32, ptr [[RET]], align 4
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// CHECK-NEXT: ret i32 [[TMP1]]
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// CHECK: z.split:
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// CHECK-NEXT: store i32 [[TMP0]], ptr [[RET]], align 4
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// CHECK-NEXT: br label [[Z]]
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//
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int test0 (void) {
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int ret;
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asm goto ("" : "=r"(ret):::z);
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ret = 42;
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z:
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return ret;
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}
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// CHECK-LABEL: @test1(
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// CHECK-NEXT: entry:
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// CHECK-NEXT: [[RET:%.*]] = alloca i32, align 4
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// CHECK-NEXT: [[B:%.*]] = alloca i32, align 4
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// CHECK-NEXT: [[TMP0:%.*]] = callbr { i32, i32 } asm "", "=r,=r,!i,~{dirflag},~{fpsr},~{flags}"() #[[ATTR1]]
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// CHECK-NEXT: to label [[ASM_FALLTHROUGH:%.*]] [label %z.split], !srcloc !3
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// CHECK: asm.fallthrough:
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// CHECK-NEXT: [[ASMRESULT:%.*]] = extractvalue { i32, i32 } [[TMP0]], 0
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// CHECK-NEXT: [[ASMRESULT1:%.*]] = extractvalue { i32, i32 } [[TMP0]], 1
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// CHECK-NEXT: store i32 [[ASMRESULT]], ptr [[RET]], align 4
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// CHECK-NEXT: store i32 [[ASMRESULT1]], ptr [[B]], align 4
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// CHECK-NEXT: store i32 42, ptr [[RET]], align 4
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// CHECK-NEXT: br label [[Z:%.*]]
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// CHECK: z:
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// CHECK-NEXT: [[TMP1:%.*]] = load i32, ptr [[RET]], align 4
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// CHECK-NEXT: ret i32 [[TMP1]]
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// CHECK: z.split:
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// CHECK-NEXT: [[ASMRESULT2:%.*]] = extractvalue { i32, i32 } [[TMP0]], 0
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// CHECK-NEXT: [[ASMRESULT3:%.*]] = extractvalue { i32, i32 } [[TMP0]], 1
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// CHECK-NEXT: store i32 [[ASMRESULT2]], ptr [[RET]], align 4
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// CHECK-NEXT: store i32 [[ASMRESULT3]], ptr [[B]], align 4
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// CHECK-NEXT: br label [[Z]]
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//
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int test1 (void) {
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int ret, b;
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asm goto ("" : "=r"(ret), "=r"(b):::z);
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ret = 42;
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z:
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return ret;
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}
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// CHECK-LABEL: @test2(
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// CHECK-NEXT: entry:
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// CHECK-NEXT: [[RET:%.*]] = alloca i32, align 4
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// CHECK-NEXT: [[B:%.*]] = alloca i32, align 4
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// CHECK-NEXT: [[TMP0:%.*]] = callbr { i32, i32 } asm "", "=r,=r,!i,~{dirflag},~{fpsr},~{flags}"() #[[ATTR1]]
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// CHECK-NEXT: to label [[ASM_FALLTHROUGH:%.*]] [label %z.split], !srcloc !4
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// CHECK: asm.fallthrough:
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// CHECK-NEXT: [[ASMRESULT:%.*]] = extractvalue { i32, i32 } [[TMP0]], 0
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// CHECK-NEXT: [[ASMRESULT1:%.*]] = extractvalue { i32, i32 } [[TMP0]], 1
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// CHECK-NEXT: store i32 [[ASMRESULT]], ptr [[RET]], align 4
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// CHECK-NEXT: store i32 [[ASMRESULT1]], ptr [[B]], align 4
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// CHECK-NEXT: [[TMP1:%.*]] = callbr { i32, i32 } asm "", "=r,=r,!i,~{dirflag},~{fpsr},~{flags}"() #[[ATTR1]]
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// CHECK-NEXT: to label [[ASM_FALLTHROUGH4:%.*]] [label %z.split9], !srcloc !5
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// CHECK: asm.fallthrough4:
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// CHECK-NEXT: [[ASMRESULT5:%.*]] = extractvalue { i32, i32 } [[TMP1]], 0
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// CHECK-NEXT: [[ASMRESULT6:%.*]] = extractvalue { i32, i32 } [[TMP1]], 1
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// CHECK-NEXT: store i32 [[ASMRESULT5]], ptr [[RET]], align 4
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// CHECK-NEXT: store i32 [[ASMRESULT6]], ptr [[B]], align 4
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// CHECK-NEXT: br label [[Z:%.*]]
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// CHECK: z:
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// CHECK-NEXT: [[TMP2:%.*]] = load i32, ptr [[RET]], align 4
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// CHECK-NEXT: ret i32 [[TMP2]]
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// CHECK: z.split:
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// CHECK-NEXT: [[ASMRESULT2:%.*]] = extractvalue { i32, i32 } [[TMP0]], 0
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// CHECK-NEXT: [[ASMRESULT3:%.*]] = extractvalue { i32, i32 } [[TMP0]], 1
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// CHECK-NEXT: store i32 [[ASMRESULT2]], ptr [[RET]], align 4
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// CHECK-NEXT: store i32 [[ASMRESULT3]], ptr [[B]], align 4
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// CHECK-NEXT: br label [[Z]]
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// CHECK: z.split9:
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// CHECK-NEXT: [[ASMRESULT7:%.*]] = extractvalue { i32, i32 } [[TMP1]], 0
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// CHECK-NEXT: [[ASMRESULT8:%.*]] = extractvalue { i32, i32 } [[TMP1]], 1
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// CHECK-NEXT: store i32 [[ASMRESULT7]], ptr [[RET]], align 4
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// CHECK-NEXT: store i32 [[ASMRESULT8]], ptr [[B]], align 4
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// CHECK-NEXT: br label [[Z]]
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//
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int test2 (void) {
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int ret, b;
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asm goto ("" : "=r"(ret), "=r"(b):::z);
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asm goto ("" : "=r"(ret), "=r"(b):::z);
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z:
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return ret;
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}
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// CHECK-LABEL: @test3(
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// CHECK-NEXT: entry:
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// CHECK-NEXT: [[RETVAL:%.*]] = alloca i32, align 4
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// CHECK-NEXT: [[OUT1_ADDR:%.*]] = alloca i32, align 4
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// CHECK-NEXT: store i32 [[OUT1:%.*]], ptr [[OUT1_ADDR]], align 4
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// CHECK-NEXT: [[TMP0:%.*]] = callbr i32 asm "", "=r,!i,!i,~{dirflag},~{fpsr},~{flags}"() #[[ATTR1]]
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// CHECK-NEXT: to label [[ASM_FALLTHROUGH:%.*]] [label [[LABEL_TRUE_SPLIT:%.*]], label %loop.split], !srcloc !6
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// CHECK: asm.fallthrough:
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// CHECK-NEXT: store i32 [[TMP0]], ptr [[OUT1_ADDR]], align 4
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// CHECK-NEXT: store i32 0, ptr [[RETVAL]], align 4
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// CHECK-NEXT: br label [[RETURN:%.*]]
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// CHECK: label_true.split:
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// CHECK-NEXT: store i32 [[TMP0]], ptr [[OUT1_ADDR]], align 4
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// CHECK-NEXT: br label [[LABEL_TRUE:%.*]]
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// CHECK: loop.split:
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// CHECK-NEXT: store i32 [[TMP0]], ptr [[OUT1_ADDR]], align 4
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// CHECK-NEXT: br label [[LOOP:%.*]]
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// CHECK: loop:
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// CHECK-NEXT: store i32 0, ptr [[RETVAL]], align 4
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// CHECK-NEXT: br label [[RETURN]]
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// CHECK: label_true:
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// CHECK-NEXT: store i32 1, ptr [[RETVAL]], align 4
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// CHECK-NEXT: br label [[RETURN]]
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// CHECK: return:
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// CHECK-NEXT: [[TMP1:%.*]] = load i32, ptr [[RETVAL]], align 4
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// CHECK-NEXT: ret i32 [[TMP1]]
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//
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int test3 (int out1) {
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asm goto("" : "=r"(out1)::: label_true, loop);
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return 0;
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loop:
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return 0;
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label_true:
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return 1;
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}
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// CHECK-LABEL: @test4(
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// CHECK-NEXT: entry:
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// CHECK-NEXT: [[X:%.*]] = alloca i32, align 4
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// CHECK-NEXT: br label [[FOO:%.*]]
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// CHECK: foo:
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// CHECK-NEXT: [[TMP0:%.*]] = callbr i32 asm "", "=r,!i,~{dirflag},~{fpsr},~{flags}"() #[[ATTR1]]
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// CHECK-NEXT: to label [[ASM_FALLTHROUGH:%.*]] [label %foo.split], !srcloc !7
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// CHECK: asm.fallthrough:
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// CHECK-NEXT: store i32 [[TMP0]], ptr [[X]], align 4
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// CHECK-NEXT: ret void
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// CHECK: foo.split:
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// CHECK-NEXT: store i32 [[TMP0]], ptr [[X]], align 4
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// CHECK-NEXT: br label [[FOO]]
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//
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void test4 (void) {
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int x;
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foo:
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asm goto ("" : "=r"(x):::foo);
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}
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