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authorTim Northover <tnorthover@apple.com>2013-11-14 17:15:39 +0000
committerTim Northover <tnorthover@apple.com>2013-11-14 17:15:39 +0000
commitbf7329d9a0169abbd6ec837dc8b682b2f2fd98cd (patch)
tree43da4cec9c16756e2d25ae62996ac91cb24ad01a /test/CodeGen/ARM
parent5e9f8c3948ddeee5d40d525e076fa63fc7b8ae40 (diff)
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ARM: produce friendly error for invalid inline asm
We used to perform an invalid operation on an MVT and crash, which wasn't much fun. Patch by Oliver Stannard. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@194714 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test/CodeGen/ARM')
-rw-r--r--test/CodeGen/ARM/2013-11-08-inline-asm-neon-array.ll16
1 files changed, 16 insertions, 0 deletions
diff --git a/test/CodeGen/ARM/2013-11-08-inline-asm-neon-array.ll b/test/CodeGen/ARM/2013-11-08-inline-asm-neon-array.ll
new file mode 100644
index 0000000..5a86477
--- /dev/null
+++ b/test/CodeGen/ARM/2013-11-08-inline-asm-neon-array.ll
@@ -0,0 +1,16 @@
+;RUN: not llc -mtriple=arm-linux-gnueabihf < %s 2>&1 | FileCheck %s
+
+; ModuleID = 'bug.c'
+target datalayout = "e-p:32:32:32-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:64:128-a0:0:64-n32-S64"
+target triple = "armv7--"
+
+%struct.uint8x8x4_t = type { [4 x <8 x i8>] }
+
+define void @foo() #0 {
+ %vsrc = alloca %struct.uint8x8x4_t, align 8
+ %ptr = alloca i8;
+ %1 = call i8* asm sideeffect "vld4.u8 ${0:h}, [$1], $2", "=*w,=r,r,1"(%struct.uint8x8x4_t* %vsrc, i32 0, i8* %ptr)
+ ret void
+}
+
+; CHECK: error: couldn't allocate output register for constraint 'w'