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Stricter check for the memory access.

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The current pattern would trigger for scheduling changes of the
post-load computation, since those are commutable with the inline asm.
Avoid this by explicitly check the order of load vs asm block.

llvm-svn: 367180
This commit is contained in:
Joerg Sonnenberger 2019-07-27 18:57:59 +00:00
parent a0b4d6a6d3
commit cd5d699ac4
1 changed files with 3 additions and 1 deletions
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4
test/CodeGen/X86/inlineasm-sched-bug.ll
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@ -1,7 +1,9 @@
; PR13504
; RUN: llc -mtriple=i686-- -mcpu=atom < %s | FileCheck %s
; Check that treemap is read before the asm statement.
; CHECK: movl 8(%{{esp|ebp}})
; CHECK: bsfl
; CHECK-NOT: movl
; CHECK-NOT: movl 8(%{{esp|ebp}})
define i32 @foo(i32 %treemap) nounwind uwtable {
entry: