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llvm-mirror/test/CodeGen/X86/lsr-nonaffine.ll
Matthias Braun f7935a3f63 X86: 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: 309774
2017-08-02 00:28:10 +00:00

31 lines
860 B
LLVM

; RUN: llc -asm-verbose=false -mtriple=x86_64-apple-darwin -o - < %s | FileCheck %s
; LSR should leave non-affine expressions alone because it currently
; doesn't know how to do anything with them, and when it tries, it
; gets SCEVExpander's current expansion for them, which is suboptimal.
; CHECK: xorl %eax, %eax
; CHECK-NEXT: align
; CHECK-NEXT: BB0_1:
; CHECK-NEXT: movq %rax, (%rdx)
; CHECK-NEXT: addq %rsi, %rax
; CHECK-NEXT: cmpq %rdi, %rax
; CHECK-NEXT: jl
; CHECK-NEXT: imulq %rax, %rax
; CHECK-NEXT: ret
define i64 @foo(i64 %n, i64 %s, i64* %p) nounwind {
entry:
br label %loop
loop:
%i = phi i64 [ 0, %entry ], [ %i.next, %loop ]
store volatile i64 %i, i64* %p
%i.next = add i64 %i, %s
%c = icmp slt i64 %i.next, %n
br i1 %c, label %loop, label %exit
exit:
%mul = mul i64 %i.next, %i.next
ret i64 %mul
}