1; RUN: opt < %s -S -nvvm-reflect -nvvm-reflect-list USE_MUL=0 -O2 | FileCheck %s --check-prefix=USE_MUL_0 2; RUN: opt < %s -S -nvvm-reflect -nvvm-reflect-list USE_MUL=1 -O2 | FileCheck %s --check-prefix=USE_MUL_1 3 4@str = private unnamed_addr addrspace(4) constant [8 x i8] c"USE_MUL\00" 5 6declare i32 @__nvvm_reflect(i8*) 7declare i8* @llvm.nvvm.ptr.constant.to.gen.p0i8.p4i8(i8 addrspace(4)*) 8 9define float @foo(float %a, float %b) { 10; USE_MUL_0: define float @foo 11; USE_MUL_0-NOT: call i32 @__nvvm_reflect 12; USE_MUL_1: define float @foo 13; USE_MUL_1-NOT: call i32 @__nvvm_reflect 14 %ptr = tail call i8* @llvm.nvvm.ptr.constant.to.gen.p0i8.p4i8(i8 addrspace(4)* getelementptr inbounds ([8 x i8], [8 x i8] addrspace(4)* @str, i32 0, i32 0)) 15 %reflect = tail call i32 @__nvvm_reflect(i8* %ptr) 16 %cmp = icmp ugt i32 %reflect, 0 17 br i1 %cmp, label %use_mul, label %use_add 18 19use_mul: 20; USE_MUL_1: fmul float %a, %b 21; USE_MUL_0-NOT: fadd float %a, %b 22 %ret1 = fmul float %a, %b 23 br label %exit 24 25use_add: 26; USE_MUL_0: fadd float %a, %b 27; USE_MUL_1-NOT: fmul float %a, %b 28 %ret2 = fadd float %a, %b 29 br label %exit 30 31exit: 32 %ret = phi float [%ret1, %use_mul], [%ret2, %use_add] 33 ret float %ret 34} 35 36declare i32 @llvm.nvvm.reflect.p0i8(i8*) 37 38; USE_MUL_0: define i32 @intrinsic 39; USE_MUL_1: define i32 @intrinsic 40define i32 @intrinsic() { 41; USE_MUL_0-NOT: call i32 @llvm.nvvm.reflect 42; USE_MUL_0: ret i32 0 43; USE_MUL_1-NOT: call i32 @llvm.nvvm.reflect 44; USE_MUL_1: ret i32 1 45 %ptr = tail call i8* @llvm.nvvm.ptr.constant.to.gen.p0i8.p4i8(i8 addrspace(4)* getelementptr inbounds ([8 x i8], [8 x i8] addrspace(4)* @str, i32 0, i32 0)) 46 %reflect = tail call i32 @llvm.nvvm.reflect.p0i8(i8* %ptr) 47 ret i32 %reflect 48} 49 50; CUDA-7.0 passes __nvvm_reflect argument slightly differently. 51; Verify that it works, too 52 53@"$str" = private addrspace(1) constant [8 x i8] c"USE_MUL\00" 54 55define float @bar(float %a, float %b) { 56; USE_MUL_0: define float @bar 57; USE_MUL_0-NOT: call i32 @__nvvm_reflect 58; USE_MUL_1: define float @bar 59; USE_MUL_1-NOT: call i32 @__nvvm_reflect 60 %reflect = call i32 @__nvvm_reflect(i8* addrspacecast (i8 addrspace(1)* getelementptr inbounds ([8 x i8], [8 x i8] addrspace(1)* @"$str", i32 0, i32 0) to i8*)) 61 %cmp = icmp ne i32 %reflect, 0 62 br i1 %cmp, label %use_mul, label %use_add 63 64use_mul: 65; USE_MUL_1: fmul float %a, %b 66; USE_MUL_0-NOT: fadd float %a, %b 67 %ret1 = fmul float %a, %b 68 br label %exit 69 70use_add: 71; USE_MUL_0: fadd float %a, %b 72; USE_MUL_1-NOT: fmul float %a, %b 73 %ret2 = fadd float %a, %b 74 br label %exit 75 76exit: 77 %ret = phi float [%ret1, %use_mul], [%ret2, %use_add] 78 ret float %ret 79} 80