maxjhandsome
/
llvm-project
forked from OSchip/llvm-project
1
0
Fork 0
Code Issues Pull Requests Packages Releases Wiki Activity
llvm-project/llvm/test/CodeGen/AMDGPU/r600-legalize-umax-bug.ll

17 lines
470 B
LLVM
Raw Normal View History

[SelectionDAG] Fix in legalization of UMAX/SMAX/UMIN/SMIN. Solves PR31486. Summary: Originally i64 = umax t8, Constant:i64<4> was expanded into i32,i32 = umax Constant:i32<0>, Constant:i32<0> i32,i32 = umax t7, Constant:i32<4> Now instead the two produced umax:es return i32 instead of i32, i32. Thanks to Jan Vesely for help with the test case. Patch by mikael.holmen at ericsson.com Reviewers: bogner, jvesely, tstellarAMD, arsenm Subscribers: test, wdng, RKSimon, arsenm, nhaehnle, llvm-commits Differential Revision: https://reviews.llvm.org/D28135 llvm-svn: 291441
2017-01-09 20:03:50 +08:00
; RUN: llc -march=r600 -mcpu=cypress -start-after safe-stack %s -o - | FileCheck %s
; Don't crash
; CHECK: MAX_UINT
AMDGPU: Mark all unspecified CC functions in tests as amdgpu_kernel Currently the default C calling convention functions are treated the same as compute kernels. Make this explicit so the default calling convention can be changed to a non-kernel. Converted with perl -pi -e 's/define void/define amdgpu_kernel void/' on the relevant test directories (and undoing in one place that actually wanted a non-kernel). llvm-svn: 298444
2017-03-22 05:39:51 +08:00
define amdgpu_kernel void @test(i64 addrspace(1)* %out) {
[SelectionDAG] Fix in legalization of UMAX/SMAX/UMIN/SMIN. Solves PR31486. Summary: Originally i64 = umax t8, Constant:i64<4> was expanded into i32,i32 = umax Constant:i32<0>, Constant:i32<0> i32,i32 = umax t7, Constant:i32<4> Now instead the two produced umax:es return i32 instead of i32, i32. Thanks to Jan Vesely for help with the test case. Patch by mikael.holmen at ericsson.com Reviewers: bogner, jvesely, tstellarAMD, arsenm Subscribers: test, wdng, RKSimon, arsenm, nhaehnle, llvm-commits Differential Revision: https://reviews.llvm.org/D28135 llvm-svn: 291441
2017-01-09 20:03:50 +08:00
bb:
store i64 2, i64 addrspace(1)* %out
%tmp = load i64, i64 addrspace(1)* %out
br label %jump
jump: ; preds = %bb
%tmp1 = icmp ugt i64 %tmp, 4
%umax = select i1 %tmp1, i64 %tmp, i64 4
store i64 %umax, i64 addrspace(1)* %out
ret void
}