; REQUIRES: asserts ; RUN: llc < %s -mtriple=i686-unknown-linux -relocation-model=static -stats 2>&1 | \ ; RUN: grep asm-printer | grep 14 ; ; It's possible to schedule this in 14 instructions by avoiding ; callee-save registers, but the scheduler isn't currently that ; conervative with registers. @size20 = external dso_local global i32 ; [#uses=1] @in5 = external dso_local global i8* ; [#uses=1] define i32 @compare(i8* %a, i8* %b) nounwind { %tmp = bitcast i8* %a to i32* ; [#uses=1] %tmp1 = bitcast i8* %b to i32* ; [#uses=1] %tmp.upgrd.1 = load i32, i32* @size20 ; [#uses=1] %tmp.upgrd.2 = load i8*, i8** @in5 ; [#uses=2] %tmp3 = load i32, i32* %tmp1 ; [#uses=1] %gep.upgrd.3 = zext i32 %tmp3 to i64 ; [#uses=1] %tmp4 = getelementptr i8, i8* %tmp.upgrd.2, i64 %gep.upgrd.3 ; [#uses=2] %tmp7 = load i32, i32* %tmp ; [#uses=1] %gep.upgrd.4 = zext i32 %tmp7 to i64 ; [#uses=1] %tmp8 = getelementptr i8, i8* %tmp.upgrd.2, i64 %gep.upgrd.4 ; [#uses=2] %tmp.upgrd.5 = tail call i32 @memcmp( i8* %tmp8, i8* %tmp4, i32 %tmp.upgrd.1 ) ; [#uses=1] ret i32 %tmp.upgrd.5 } declare i32 @memcmp(i8*, i8*, i32)