derek.holloway
7502bf64a4
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52 lines
1.7 KiB
C++
52 lines
1.7 KiB
C++
// Covers a bug fix for ABI selection with homogenous aggregates:
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// See: https://bugs.llvm.org/show_bug.cgi?id=39982
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// REQUIRES: arm-registered-target
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// RUN: %clang -mfloat-abi=hard --target=armv7-unknown-linux-gnueabi -O3 -S -o - %s | FileCheck %s -check-prefixes=HARD,CHECK
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// RUN: %clang -mfloat-abi=softfp --target=armv7-unknown-linux-gnueabi -O3 -S -o - %s | FileCheck %s -check-prefixes=SOFTFP,CHECK
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// RUN: %clang -mfloat-abi=soft --target=armv7-unknown-linux-gnueabi -O3 -S -o - %s | FileCheck %s -check-prefixes=SOFT,CHECK
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struct S {
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float f;
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float d;
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float c;
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float t;
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};
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// Variadic functions should always marshal for the base standard.
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// See section 5.5 (Parameter Passing) of the AAPCS.
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float __attribute__((pcs("aapcs-vfp"))) variadic(S s, ...) {
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// CHECK-NOT: vmov s{{[0-9]+}}, s{{[0-9]+}}
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// CHECK: mov r{{[0-9]+}}, r{{[0-9]+}}
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return s.d;
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}
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float no_attribute(S s) {
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// SOFT: mov r{{[0-9]+}}, r{{[0-9]+}}
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// SOFTFP: mov r{{[0-9]+}}, r{{[0-9]+}}
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// HARD: vmov.f32 s{{[0-9]+}}, s{{[0-9]+}}
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return s.d;
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}
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float __attribute__((pcs("aapcs-vfp"))) baz(float x, float y) {
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// CHECK-NOT: mov s{{[0-9]+}}, r{{[0-9]+}}
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// SOFT: mov r{{[0-9]+}}, r{{[0-9]+}}
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// SOFTFP: vmov.f32 s{{[0-9]+}}, s{{[0-9]+}}
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// HARD: vmov.f32 s{{[0-9]+}}, s{{[0-9]+}}
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return y;
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}
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float __attribute__((pcs("aapcs-vfp"))) foo(S s) {
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// CHECK-NOT: mov s{{[0-9]+}}, r{{[0-9]+}}
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// SOFT: mov r{{[0-9]+}}, r{{[0-9]+}}
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// SOFTFP: vmov.f32 s{{[0-9]+}}, s{{[0-9]+}}
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// HARD: vmov.f32 s{{[0-9]+}}, s{{[0-9]+}}
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return s.d;
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}
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float __attribute__((pcs("aapcs"))) bar(S s) {
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// CHECK-NOT: vmov.f32 s{{[0-9]+}}, s{{[0-9]+}}
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// CHECK: mov r{{[0-9]+}}, r{{[0-9]+}}
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return s.d;
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}
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