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| author | Richard Osborne <richard@xmos.com> | 2011-09-12 14:43:23 +0000 |
|---|---|---|
| committer | Richard Osborne <richard@xmos.com> | 2011-09-12 14:43:23 +0000 |
| commit | 97a2a5c4dc039e97ae09b826d5f1b08fe7502dc2 (patch) | |
| tree | af25a4d027a17a854153c4803e736a2ff4d67f20 /llvm/test/CodeGen/XCore/licm-ldwcp.ll | |
| parent | dcde6e30b9663983fe31acb24b21cc2812e9b5ed (diff) | |
| download | bcm5719-llvm-97a2a5c4dc039e97ae09b826d5f1b08fe7502dc2.tar.gz bcm5719-llvm-97a2a5c4dc039e97ae09b826d5f1b08fe7502dc2.zip | |
Associate a MemOperand with LDWCP nodes introduced during ISel.
This information is required if we want LDWCP to be hoisted out of loops.
llvm-svn: 139495
Diffstat (limited to 'llvm/test/CodeGen/XCore/licm-ldwcp.ll')
| -rw-r--r-- | llvm/test/CodeGen/XCore/licm-ldwcp.ll | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/llvm/test/CodeGen/XCore/licm-ldwcp.ll b/llvm/test/CodeGen/XCore/licm-ldwcp.ll new file mode 100644 index 00000000000..4884f70e736 --- /dev/null +++ b/llvm/test/CodeGen/XCore/licm-ldwcp.ll @@ -0,0 +1,18 @@ +; RUN: llc < %s -march=xcore -asm-verbose=0 | FileCheck %s + +; MachineLICM should hoist the LDWCP out of the loop. + +; CHECK: f: +; CHECK-NEXT: ldw [[REG:r[0-9]+]], cp[.LCPI0_0] +; CHECK-NEXT: .LBB0_1: +; CHECK-NEXT: stw [[REG]], r0[0] +; CHECK-NEXT: bu .LBB0_1 + +define void @f(i32* nocapture %p) noreturn nounwind { +entry: + br label %bb + +bb: ; preds = %bb, %entry + volatile store i32 525509670, i32* %p, align 4 + br label %bb +} |
