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llvm-mirror/test/CodeGen/ARM/zextload_demandedbits.ll
Matthias Braun d2e6077460 ARM: Do not use llc -march in tests.
`llc -march` is problematic because it only switches the target
architecture, but leaves the operating system unchanged. This
occasionally leads to indeterministic tests because the OS from
LLVM_DEFAULT_TARGET_TRIPLE is used.

However we can simply always use `llc -mtriple` instead. This changes
all the tests to do this to avoid people using -march when they copy and
paste parts of tests.

See also the discussion in https://reviews.llvm.org/D35287

llvm-svn: 309755
2017-08-01 22:20:49 +00:00

36 lines
1.2 KiB
LLVM

; RUN: llc < %s -mtriple="arm-apple-ios3.0.0" | FileCheck %s
target datalayout = "e-p:32:32:32-i1:8:32-i8:8:32-i16:16:32-i32:32:32-i64:32:64-f32:32:32-f64:32:64-v64:32:64-v128:32:128-a0:0:32-n32-S32"
%struct.eggs = type { %struct.spam, i16 }
%struct.spam = type { [3 x i32] }
%struct.barney = type { [2 x i32], [2 x i32] }
; Make sure that the sext op does not get lost due to computeKnownBits.
; CHECK: quux
; CHECK: lsl
; CHECK: asr
; CHECK: bl
; CHECK: pop
define void @quux(%struct.eggs* %arg) {
bb:
%tmp1 = getelementptr inbounds %struct.eggs, %struct.eggs* %arg, i32 0, i32 1
%0 = load i16, i16* %tmp1, align 2
%tobool = icmp eq i16 %0, 0
br i1 %tobool, label %bb16, label %bb3
bb3: ; preds = %bb
%tmp4 = bitcast i16* %tmp1 to i8*
%tmp5 = ptrtoint i16* %tmp1 to i32
%tmp6 = shl i32 %tmp5, 20
%tmp7 = ashr exact i32 %tmp6, 20
%tmp14 = getelementptr inbounds %struct.barney, %struct.barney* undef, i32 %tmp7
%tmp15 = tail call i32 @widget(%struct.barney* %tmp14, i8* %tmp4, i32 %tmp7)
br label %bb16
bb16: ; preds = %bb3, %bb
ret void
}
declare i32 @widget(%struct.barney*, i8*, i32)