1 ; RUN: llc < %s -march=nvptx -mcpu=sm_20 | FileCheck %s 2 3 ;;; Need 4-byte alignment on float* passed byval 4 define ptx_device void @t1(float* byval %x) { 5 ; CHECK: .func t1 6 ; CHECK: .param .align 4 .b8 t1_param_0[4] 7 ret void 8 } 9 10 11 ;;; Need 8-byte alignment on double* passed byval 12 define ptx_device void @t2(double* byval %x) { 13 ; CHECK: .func t2 14 ; CHECK: .param .align 8 .b8 t2_param_0[8] 15 ret void 16 } 17 18 19 ;;; Need 4-byte alignment on float2* passed byval 20 %struct.float2 = type { float, float } 21 define ptx_device void @t3(%struct.float2* byval %x) { 22 ; CHECK: .func t3 23 ; CHECK: .param .align 4 .b8 t3_param_0[8] 24 ret void 25 } 26 27 ;;; Need at least 4-byte alignment in order to avoid miscompilation by 28 ;;; ptxas for sm_50+ 29 define ptx_device void @t4(i8* byval %x) { 30 ; CHECK: .func t4 31 ; CHECK: .param .align 4 .b8 t4_param_0[1] 32 ret void 33 } 34 35 ;;; Make sure we adjust alignment at the call site as well. 36 define ptx_device void @t5(i8* align 2 byval %x) { 37 ; CHECK: .func t5 38 ; CHECK: .param .align 4 .b8 t5_param_0[1] 39 ; CHECK: { 40 ; CHECK: .param .align 4 .b8 param0[1]; 41 ; CHECK: call.uni 42 call void @t4(i8* byval %x) 43 ret void 44 } 45
