From a1d16b53e847a97846ad5df293ae1cfc3091a092 Mon Sep 17 00:00:00 2001 From: Richard Osborne Date: Mon, 12 Sep 2011 14:43:23 +0000 Subject: Associate a MemOperand with LDWCP nodes introduced during ISel. This information is required if we want LDWCP to be hoisted out of loops. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139495 91177308-0d34-0410-b5e6-96231b3b80d8 --- test/CodeGen/XCore/licm-ldwcp.ll | 18 ++++++++++++++++++ 1 file changed, 18 insertions(+) create mode 100644 test/CodeGen/XCore/licm-ldwcp.ll (limited to 'test/CodeGen/XCore') diff --git a/test/CodeGen/XCore/licm-ldwcp.ll b/test/CodeGen/XCore/licm-ldwcp.ll new file mode 100644 index 0000000000..4884f70e73 --- /dev/null +++ b/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 +} -- cgit v1.2.3