jfb updated this revision to Diff 48363.
jfb added a comment.
- Add test.
http://reviews.llvm.org/D17349
Files:
lib/Basic/Targets.cpp
test/CodeGen/arm-vfp-asm-constraint.c
Index: test/CodeGen/arm-vfp-asm-constraint.c
===================================================================
--- /dev/null
+++ test/CodeGen/arm-vfp-asm-constraint.c
@@ -0,0 +1,36 @@
+// REQUIRES: arm-registered-target
+// RUN: %clang_cc1 -triple armv7-unknown-unknown -mfpmath vfp -emit-llvm -o -
%s | FileCheck %s
+
+// CHECK-NOT: error:
+
+double fabs(double x) { // CHECK-LABEL: @fabs(
+ // CHECK: call double asm "vabs.f64 ${0:P}, ${1:P}", "=w,w"(double
+ __asm__("vabs.f64 %P0, %P1"
+ : "=w"(x)
+ : "w"(x));
+ return x;
+}
+
+float fabsf(float x) { // CHECK-LABEL: @fabsf(
+ // CHECK: call float asm "vabs.f32 $0, $1", "=t,t"(float
+ __asm__("vabs.f32 %0, %1"
+ : "=t"(x)
+ : "t"(x));
+ return x;
+}
+
+double sqrt(double x) { // CHECK-LABEL: @sqrt(
+ // CHECK: call double asm "vsqrt.f64 ${0:P}, ${1:P}", "=w,w"(double
+ __asm__("vsqrt.f64 %P0, %P1"
+ : "=w"(x)
+ : "w"(x));
+ return x;
+}
+
+float sqrtf(float x) { // CHECK-LABEL: @sqrtf(
+ // CHECK: call float asm "vsqrt.f32 $0, $1", "=t,t"(float
+ __asm__("vsqrt.f32 %0, %1"
+ : "=t"(x)
+ : "t"(x));
+ return x;
+}
Index: lib/Basic/Targets.cpp
===================================================================
--- lib/Basic/Targets.cpp
+++ lib/Basic/Targets.cpp
@@ -4939,8 +4939,8 @@
default: break;
case 'l': // r0-r7
case 'h': // r8-r15
- case 'w': // VFP Floating point register single precision
- case 'P': // VFP Floating point register double precision
+ case 't': // VFP Floating point register single precision
+ case 'w': // VFP Floating point register double precision
Info.setAllowsRegister();
return true;
case 'I':
Index: test/CodeGen/arm-vfp-asm-constraint.c
===================================================================
--- /dev/null
+++ test/CodeGen/arm-vfp-asm-constraint.c
@@ -0,0 +1,36 @@
+// REQUIRES: arm-registered-target
+// RUN: %clang_cc1 -triple armv7-unknown-unknown -mfpmath vfp -emit-llvm -o - %s | FileCheck %s
+
+// CHECK-NOT: error:
+
+double fabs(double x) { // CHECK-LABEL: @fabs(
+ // CHECK: call double asm "vabs.f64 ${0:P}, ${1:P}", "=w,w"(double
+ __asm__("vabs.f64 %P0, %P1"
+ : "=w"(x)
+ : "w"(x));
+ return x;
+}
+
+float fabsf(float x) { // CHECK-LABEL: @fabsf(
+ // CHECK: call float asm "vabs.f32 $0, $1", "=t,t"(float
+ __asm__("vabs.f32 %0, %1"
+ : "=t"(x)
+ : "t"(x));
+ return x;
+}
+
+double sqrt(double x) { // CHECK-LABEL: @sqrt(
+ // CHECK: call double asm "vsqrt.f64 ${0:P}, ${1:P}", "=w,w"(double
+ __asm__("vsqrt.f64 %P0, %P1"
+ : "=w"(x)
+ : "w"(x));
+ return x;
+}
+
+float sqrtf(float x) { // CHECK-LABEL: @sqrtf(
+ // CHECK: call float asm "vsqrt.f32 $0, $1", "=t,t"(float
+ __asm__("vsqrt.f32 %0, %1"
+ : "=t"(x)
+ : "t"(x));
+ return x;
+}
Index: lib/Basic/Targets.cpp
===================================================================
--- lib/Basic/Targets.cpp
+++ lib/Basic/Targets.cpp
@@ -4939,8 +4939,8 @@
default: break;
case 'l': // r0-r7
case 'h': // r8-r15
- case 'w': // VFP Floating point register single precision
- case 'P': // VFP Floating point register double precision
+ case 't': // VFP Floating point register single precision
+ case 'w': // VFP Floating point register double precision
Info.setAllowsRegister();
return true;
case 'I':
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