forked from OSchip/llvm-project
32 lines
986 B
C
32 lines
986 B
C
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// REQUIRES: bpf-registered-target
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// RUN: %clang -target bpf -emit-llvm -S -Xclang -target-feature -Xclang +alu32 %s -o - | FileCheck %s
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// RUN: %clang -target bpf -emit-llvm -S -mcpu=v3 %s -o - | FileCheck %s
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void test_generic_constraints(int var32, long var64) {
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asm("%0 = %1"
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: "=r"(var32)
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: "0"(var32));
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// CHECK: [[R32_ARG:%[a-zA-Z0-9]+]] = load i32, i32*
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// CHECK: call i32 asm "$0 = $1", "=r,0"(i32 [[R32_ARG]])
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asm("%0 = %1"
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: "=r"(var64)
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: "0"(var64));
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// CHECK: [[R64_ARG:%[a-zA-Z0-9]+]] = load i64, i64*
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// CHECK: call i64 asm "$0 = $1", "=r,0"(i64 [[R64_ARG]])
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asm("%0 = %1"
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: "=r"(var64)
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: "r"(var64));
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// CHECK: [[R64_ARG:%[a-zA-Z0-9]+]] = load i64, i64*
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// CHECK: call i64 asm "$0 = $1", "=r,r"(i64 [[R64_ARG]])
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}
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void test_constraint_w(int a) {
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asm("%0 = %1"
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: "=w"(a)
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: "w"(a));
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// CHECK: [[R32_ARG:%[a-zA-Z0-9]+]] = load i32, i32*
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// CHECK: call i32 asm "$0 = $1", "=w,w"(i32 [[R32_ARG]])
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}
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