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llvm-mirror/test/CodeGen/NVPTX/pr13291-i1-store.ll
Justin Holewinski 3f79944ac9 [NVPTX] Implement custom lowering of loads/stores for i1
Loads from i1 become loads from i8 followed by trunc
Stores to i1 become zext to i8 followed by store to i8

Fixes PR13291

llvm-svn: 167948
2012-11-14 19:19:16 +00:00

27 lines
814 B
LLVM

; RUN: llc < %s -march=nvptx -mcpu=sm_20 | FileCheck %s --check-prefix=PTX32
; RUN: llc < %s -march=nvptx64 -mcpu=sm_20 | FileCheck %s --check-prefix=PTX64
define ptx_kernel void @t1(i1* %a) {
; PTX32: mov.u16 %rc{{[0-9]+}}, 0;
; PTX32-NEXT: st.u8 [%r{{[0-9]+}}], %rc{{[0-9]+}};
; PTX64: mov.u16 %rc{{[0-9]+}}, 0;
; PTX64-NEXT: st.u8 [%rl{{[0-9]+}}], %rc{{[0-9]+}};
store i1 false, i1* %a
ret void
}
define ptx_kernel void @t2(i1* %a, i8* %b) {
; PTX32: ld.u8 %rc{{[0-9]+}}, [%r{{[0-9]+}}]
; PTX32: and.b16 temp, %rc{{[0-9]+}}, 1;
; PTX32: setp.b16.eq %p{{[0-9]+}}, temp, 1;
; PTX64: ld.u8 %rc{{[0-9]+}}, [%rl{{[0-9]+}}]
; PTX64: and.b16 temp, %rc{{[0-9]+}}, 1;
; PTX64: setp.b16.eq %p{{[0-9]+}}, temp, 1;
%t1 = load i1* %a
%t2 = select i1 %t1, i8 1, i8 2
store i8 %t2, i8* %b
ret void
}