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llvm-mirror/test/Transforms/MergeFunc/phi-speculation1.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

31 lines
639 B
LLVM

; REQUIRES: asserts
; RUN: opt < %s -mergefunc -stats -disable-output 2>&1 | not grep "functions merged"
define i32 @foo1(i32 %x) {
entry:
%A = add i32 %x, 1
%B = call i32 @foo1(i32 %A)
br label %loop
loop:
%C = phi i32 [%B, %entry], [%D, %loop]
%D = add i32 %x, 2
%E = icmp ugt i32 %D, 10000
br i1 %E, label %loopexit, label %loop
loopexit:
ret i32 %D
}
define i32 @foo2(i32 %x) {
entry:
%0 = add i32 %x, 1
%1 = call i32 @foo2(i32 %0)
br label %loop
loop:
%2 = phi i32 [%1, %entry], [%3, %loop]
%3 = add i32 %2, 2
%4 = icmp ugt i32 %3, 10000
br i1 %4, label %loopexit, label %loop
loopexit:
ret i32 %3
}