arm64-assert-zext-sext.ll
1.46 KB
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; RUN: llc -O2 -mtriple=aarch64-linux-gnu < %s | FileCheck %s
declare i32 @test(i32) local_unnamed_addr
declare i32 @test1(i64) local_unnamed_addr
define i32 @assertzext(i32 %n, i1 %a, i32* %b) local_unnamed_addr {
entry:
%i = select i1 %a, i64 0, i64 66296709418
%conv.i = trunc i64 %i to i32
%cmp = icmp eq i32 %n, 0
br i1 %cmp, label %if.then, label %if.end
if.then: ; preds = %entry
store i32 0, i32* %b, align 4
br label %if.end
if.end: ; preds = %if.then, %entry
%i1 = phi i32 [ 0, %if.then ], [ %conv.i, %entry ]
%call.i = tail call i32 @test(i32 %i1)
%i2 = sext i32 %i1 to i64
%call1.i = tail call i32 @test1(i64 %i2)
ret i32 0
; CHECK: // %if.end
; CHECK: mov w{{[0-9]+}}, w{{[0-9]+}}
; CHECK: bl test
; CHECK: mov w{{[0-9]+}}, w{{[0-9]+}}
; CHECK: bl test1
}
define i32 @assertsext(i32 %n, i8 %a) local_unnamed_addr {
entry:
%conv.i = sext i8 %a to i32
%cmp = icmp eq i32 %n, 0
br i1 %cmp, label %if.then, label %if.end
if.then: ; preds = %entry
%conv1 = zext i32 %conv.i to i64
%div = udiv i64 2036854775807, %conv1
br label %if.end
; CHECK: // %if.then
; CHECK: mov w{{[0-9]+}}, w{{[0-9]+}}
; CHECK: udiv x{{[0-9]+}}, x{{[0-9]+}}, x{{[0-9]+}}
if.end: ; preds = %if.then, %entry
%i1 = phi i64 [ %div, %if.then ], [ 0, %entry ]
%call1.i = tail call i32 @test1(i64 %i1)
ret i32 0
}