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llvm-mirror/test/CodeGen/ARM/inline-asm-multilevel-gep.ll
Nick Desaulniers 31828c19d0 [TargetLowering] Handle multi depth GEPs w/ inline asm constraints
Summary:
X86TargetLowering::LowerAsmOperandForConstraint had better support than
TargetLowering::LowerAsmOperandForConstraint for arbitrary depth
getelementpointers for "i", "n", and "s" extended inline assembly
constraints. Hoist its support from the derived class into the base
class.

Link: https://github.com/ClangBuiltLinux/linux/issues/469

Reviewers: echristo, t.p.northover

Reviewed By: t.p.northover

Subscribers: t.p.northover, E5ten, kees, jyknight, nemanjai, javed.absar, eraman, hiraditya, jsji, llvm-commits, void, craig.topper, nathanchance, srhines

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D61560

llvm-svn: 360604
2019-05-13 17:27:44 +00:00

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387 B
LLVM

; RUN: llc < %s -mtriple armv7-linux-gnueabi | FileCheck %s
; @foo is a 2d array of i32s, ex.
; i32 foo [2][2]
@foo = internal global [2 x [2 x i32]] zeroinitializer, align 4
define void @bar() {
; access foo[1][1]
; CHECK: @ foo+12
tail call void asm sideeffect "@ ${0:c}", "i"(i32* getelementptr inbounds ([2 x [2 x i32]], [2 x [2 x i32]]* @foo, i64 0, i64 1, i64 1))
ret void
}