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1; RUN: llc -march=ppc64 -mcpu=g5 -mtriple=powerpc64-apple-darwin < %s | FileCheck %s
2; Check that the peephole optimizer knows about sext and zext instructions.
3; CHECK: test1sext
4define i32 @test1sext(i64 %A, i64 %B, i32* %P, i64 *%P2) nounwind {
5  %C = add i64 %A, %B
6  ; CHECK: add [[SUM:r[0-9]+]], r3, r4
7  %D = trunc i64 %C to i32
8  %E = shl i64 %C, 32
9  %F = ashr i64 %E, 32
10  ; CHECK: extsw [[EXT:r[0-9]+]], [[SUM]]
11  store volatile i64 %F, i64 *%P2
12  ; CHECK: std [[EXT]]
13  store volatile i32 %D, i32* %P
14  ; Reuse low bits of extended register, don't extend live range of SUM.
15  ; CHECK: stw [[EXT]]
16  %R = add i32 %D, %D
17  ret i32 %R
18}
19