Author: tstellar Date: Thu Nov 19 16:11:58 2015 New Revision: 253610 URL: http://llvm.org/viewvc/llvm-project?rev=253610&view=rev Log: AMDGPU: Add support for 's' and 'v' asm constraints
Summary: 's' is used to specify sgprs and 'v' is used to specify vgprs. Reviewers: arsenm, echristo Subscribers: cfe-commits Differential Revision: http://reviews.llvm.org/D14307 Added: cfe/trunk/test/Sema/inline-asm-validate-amdgpu.cl Modified: cfe/trunk/lib/Basic/Targets.cpp Modified: cfe/trunk/lib/Basic/Targets.cpp URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/Basic/Targets.cpp?rev=253610&r1=253609&r2=253610&view=diff ============================================================================== --- cfe/trunk/lib/Basic/Targets.cpp (original) +++ cfe/trunk/lib/Basic/Targets.cpp Thu Nov 19 16:11:58 2015 @@ -1826,8 +1826,15 @@ public: } bool validateAsmConstraint(const char *&Name, - TargetInfo::ConstraintInfo &info) const override { - return true; + TargetInfo::ConstraintInfo &Info) const override { + switch (*Name) { + default: break; + case 'v': // vgpr + case 's': // sgpr + Info.setAllowsRegister(); + return true; + } + return false; } ArrayRef<Builtin::Info> getTargetBuiltins() const override { Added: cfe/trunk/test/Sema/inline-asm-validate-amdgpu.cl URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/test/Sema/inline-asm-validate-amdgpu.cl?rev=253610&view=auto ============================================================================== --- cfe/trunk/test/Sema/inline-asm-validate-amdgpu.cl (added) +++ cfe/trunk/test/Sema/inline-asm-validate-amdgpu.cl Thu Nov 19 16:11:58 2015 @@ -0,0 +1,14 @@ +// REQUIRES: amdgpu-registered-target +// RUN: %clang_cc1 -x cl -triple amdgcn -fsyntax-only %s +// expected-no-diagnostics + +kernel void test () { + + int sgpr = 0, vgpr = 0, imm = 0; + + // sgpr constraints + __asm__ ("s_mov_b32 %0, %1" : "=s" (sgpr) : "s" (imm) : ); + + // vgpr constraints + __asm__ ("v_mov_b32 %0, %1" : "=v" (vgpr) : "v" (imm) : ); +} _______________________________________________ cfe-commits mailing list cfe-commits@lists.llvm.org http://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits
