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gerrit-public.fairphone.software / toolchain / llvm-project / dc7a557e6a061780dbbf303816849b3184b10366 / . / llvm / test / CodeGen / ARM / wrong-t2stmia-size-opt.ll
blob: fe335df7a1adacb03d63367112aed84146330aa8 [file] [log] [blame]
Matthias Braunf3518212015-06-26 00:26:46 +0000[diff] [blame]1; RUN: llc -mtriple=thumbv7-- -mcpu=cortex-a9 -O1 -filetype=obj %s -o - | llvm-objdump -triple=thumbv7-- -mcpu=cortex-a9 -d - | FileCheck %s
Tim Northoverba1d7042014-09-10 12:53:28 +0000[diff] [blame]2
3target datalayout = "e-m:e-p:32:32-i1:8:32-i8:8:32-i16:16:32-i64:64-v128:64:128-a:0:32-n32-S64"
4target triple = "thumbv7--linux-gnueabi"
5
6declare i8* @llvm.returnaddress(i32)
7
Matthias Braune40d89e2015-07-21 00:18:59 +0000[diff] [blame]8define i32* @wrong-t2stmia-size-reduction(i32* %addr, i32 %val0, i32 %val1) minsize {
Tim Northoverba1d7042014-09-10 12:53:28 +0000[diff] [blame]9 store i32 %val0, i32* %addr
David Blaikie79e6c742015-02-27 19:29:02 +0000[diff] [blame]10 %addr1 = getelementptr i32, i32* %addr, i32 1
Matthias Braune40d89e2015-07-21 00:18:59 +0000[diff] [blame]11 %addr2 = getelementptr i32, i32* %addr, i32 2
Tim Northoverba1d7042014-09-10 12:53:28 +0000[diff] [blame]12 %lr = call i8* @llvm.returnaddress(i32 0)
13 %lr32 = ptrtoint i8* %lr to i32
Matthias Braune40d89e2015-07-21 00:18:59 +0000[diff] [blame]14 store i32 %val1, i32* %addr1
15 store i32 %lr32, i32* %addr2
16
17 %addr3 = getelementptr i32, i32* %addr, i32 3
18 ret i32* %addr3
Tim Northoverba1d7042014-09-10 12:53:28 +0000[diff] [blame]19}
20
Matthias Braune40d89e2015-07-21 00:18:59 +0000[diff] [blame]21; Check that stm writes three registers. The bug caused one of registers (LR,
Tim Northoverba1d7042014-09-10 12:53:28 +0000[diff] [blame]22; which invalid for Thumb1 form of STMIA instruction) to be dropped.
Matthias Braune40d89e2015-07-21 00:18:59 +0000[diff] [blame]23; CHECK-LABEL: wrong-t2stmia-size-reduction:
24; CHECK: stm{{[^,]*}}, {{{.*,.*,.*}}}