llvm-mirror/test/Transforms/InstCombine/hoist_instr.ll
Eric Christopher a62270de2c Revert "Temporarily Revert "Add basic loop fusion pass.""
The reversion apparently deleted the test/Transforms directory.

Will be re-reverting again.

llvm-svn: 358552
2019-04-17 04:52:47 +00:00

19 lines
498 B
LLVM

; RUN: opt < %s -instcombine -S | FileCheck %s
;; This tests that the div is hoisted into the then block.
define i32 @foo(i1 %C, i32 %A, i32 %B) {
entry:
br i1 %C, label %then, label %endif
then: ; preds = %entry
; CHECK: then:
; CHECK-NEXT: sdiv i32
br label %endif
endif: ; preds = %then, %entry
%X = phi i32 [ %A, %then ], [ 15, %entry ] ; <i32> [#uses=1]
%Y = sdiv i32 %X, 42 ; <i32> [#uses=1]
ret i32 %Y
}