Merged to release_90 in r369649.
On Fri, Aug 16, 2019 at 12:22 PM Lewis Revill via cfe-commits <cfe-commits@lists.llvm.org> wrote: > > Author: lewis-revill > Date: Fri Aug 16 03:23:56 2019 > New Revision: 369093 > > URL: http://llvm.org/viewvc/llvm-project?rev=369093&view=rev > Log: > [RISCV] Add inline asm constraint A for RISC-V > > This allows the constraint A to be used in inline asm for RISC-V, which > allows an address held in a register to be used. > > This patch adds the minimal amount of code required to get operands with > the right constraints to compile. > > Differential Revision: https://reviews.llvm.org/D54295 > > > Modified: > cfe/trunk/lib/Basic/Targets/RISCV.cpp > cfe/trunk/test/CodeGen/riscv-inline-asm.c > > Modified: cfe/trunk/lib/Basic/Targets/RISCV.cpp > URL: > http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/Basic/Targets/RISCV.cpp?rev=369093&r1=369092&r2=369093&view=diff > ============================================================================== > --- cfe/trunk/lib/Basic/Targets/RISCV.cpp (original) > +++ cfe/trunk/lib/Basic/Targets/RISCV.cpp Fri Aug 16 03:23:56 2019 > @@ -75,6 +75,10 @@ bool RISCVTargetInfo::validateAsmConstra > // A floating-point register. > Info.setAllowsRegister(); > return true; > + case 'A': > + // An address that is held in a general-purpose register. > + Info.setAllowsMemory(); > + return true; > } > } > > > Modified: cfe/trunk/test/CodeGen/riscv-inline-asm.c > URL: > http://llvm.org/viewvc/llvm-project/cfe/trunk/test/CodeGen/riscv-inline-asm.c?rev=369093&r1=369092&r2=369093&view=diff > ============================================================================== > --- cfe/trunk/test/CodeGen/riscv-inline-asm.c (original) > +++ cfe/trunk/test/CodeGen/riscv-inline-asm.c Fri Aug 16 03:23:56 2019 > @@ -38,3 +38,9 @@ void test_f() { > // CHECK: call void asm sideeffect "", "f"(double [[FLT_ARG]]) > asm volatile ("" :: "f"(d)); > } > + > +void test_A(int *p) { > +// CHECK-LABEL: define void @test_A(i32* %p) > +// CHECK: call void asm sideeffect "", "*A"(i32* %p) > + asm volatile("" :: "A"(*p)); > +} > > > _______________________________________________ > cfe-commits mailing list > cfe-commits@lists.llvm.org > https://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits _______________________________________________ cfe-commits mailing list cfe-commits@lists.llvm.org https://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits
