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| author | Jakob Stoklund Olesen <stoklund@2pi.dk> | 2012-03-28 21:20:32 +0000 |
|---|---|---|
| committer | Jakob Stoklund Olesen <stoklund@2pi.dk> | 2012-03-28 21:20:32 +0000 |
| commit | 5b2f9136644c58ae32e00d8317540692a697d1c9 (patch) | |
| tree | 4c79c7dcb3d75f5b9fb69609d2d36da585b4cbc4 /test/CodeGen/Thumb2 | |
| parent | 2ef5bf6b34cb0041648e7cb857d2c6e673d0550b (diff) | |
| download | llvm-5b2f9136644c58ae32e00d8317540692a697d1c9.tar.gz llvm-5b2f9136644c58ae32e00d8317540692a697d1c9.tar.bz2 llvm-5b2f9136644c58ae32e00d8317540692a697d1c9.tar.xz | |
Spill DPair registers, not just QPR.
The arm_neon intrinsics can create virtual registers from the DPair
register class which allows both even-odd and odd-even D-register pairs.
This fixes PR12389.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@153603 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test/CodeGen/Thumb2')
| -rw-r--r-- | test/CodeGen/Thumb2/crash.ll | 16 |
1 files changed, 15 insertions, 1 deletions
diff --git a/test/CodeGen/Thumb2/crash.ll b/test/CodeGen/Thumb2/crash.ll index d8b51ec82d..52893af937 100644 --- a/test/CodeGen/Thumb2/crash.ll +++ b/test/CodeGen/Thumb2/crash.ll @@ -1,4 +1,4 @@ -; RUN: llc < %s -mtriple=thumbv7-apple-darwin -mcpu=cortex-a8 +; RUN: llc < %s -mtriple=thumbv7-apple-darwin -mcpu=cortex-a8 -verify-machineinstrs target datalayout = "e-p:32:32:32-i1:8:32-i8:8:32-i16:16:32-i32:32:32-i64:32:32-f32:32:32-f64:32:32-v64:64:64-v128:128:128-a0:0:32-n32" target triple = "thumbv7-apple-darwin10" @@ -47,3 +47,17 @@ bb2: ; preds = %bb tail call void @llvm.arm.neon.vst4.v4i32(i8* bitcast ([16 x i32]* @dbuf to i8*), <4 x i32> %2, <4 x i32> %3, <4 x i32> %4, <4 x i32> %5, i32 1) nounwind ret i32 0 } + +; PR12389 +; Make sure the DPair register class can spill. +define void @pr12389(i8* %p) nounwind ssp { +entry: + %vld1 = tail call <4 x float> @llvm.arm.neon.vld1.v4f32(i8* %p, i32 1) + tail call void asm sideeffect "", "~{q0},~{q1},~{q2},~{q3},~{q4},~{q5},~{q6},~{q7},~{q8},~{q9},~{q10},~{q11},~{q12},~{q13},~{q14},~{q15}"() nounwind + tail call void @llvm.arm.neon.vst1.v4f32(i8* %p, <4 x float> %vld1, i32 1) + ret void +} + +declare <4 x float> @llvm.arm.neon.vld1.v4f32(i8*, i32) nounwind readonly + +declare void @llvm.arm.neon.vst1.v4f32(i8*, <4 x float>, i32) nounwind |