sext(undef) = 0, because the top bits will all be the same.
[oota-llvm.git] / test / CodeGen / Alpha / 2008-11-12-Add128.ll
1 ; RUN: llc < %s
2 ; PR3044
3 target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-f128:128:128"
4 target triple = "alphaev6-unknown-linux-gnu"
5
6 define i128 @__mulvti3(i128 %u, i128 %v) nounwind {
7 entry:
8         %0 = load i128* null, align 16          ; <i128> [#uses=1]
9         %1 = load i64* null, align 8            ; <i64> [#uses=1]
10         %2 = zext i64 %1 to i128                ; <i128> [#uses=1]
11         %3 = add i128 %2, %0            ; <i128> [#uses=1]
12         store i128 %3, i128* null, align 16
13         unreachable
14 }