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e5bb2c0aa5
This is to simplify icmp instructions in the form like: %cmp = icmp eq i32 (i8*, i8*)* bitcast (i32 (i32**, i32**)* @f32 to i32 %(i8*, i8*)), bitcast (i32 (i64**, i64**) @f64 to i32 (i8*, i8*)*) Here @f32 and @f64 are two functions. Differential Revision: https://reviews.llvm.org/D87850
133 lines
4.3 KiB
LLVM
133 lines
4.3 KiB
LLVM
; RUN: opt -ipsccp -S %s -o -| FileCheck %s
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define void @caller.1(i8* %arg) {
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; CHECK-LABEL: define void @caller.1(i8* %arg) {
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; CHECK-NEXT: %r.1 = tail call i32 @callee.1(i32 4)
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; CHECK-NEXT: %r.2 = tail call i32 @callee.1(i32 2)
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; CHECK-NEXT: call void @use(i32 20)
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; CHECK-NEXT: ret void
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;
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%r.1 = tail call i32 @callee.1(i32 4)
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%r.2 = tail call i32 @callee.1(i32 2)
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%r.3 = add i32 %r.1, %r.2
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call void @use(i32 %r.3)
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ret void
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}
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define internal i32 @callee.1(i32 %arg) {
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; CHECK-LABEL: define internal i32 @callee.1(i32 %arg) {
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; CHECK-NEXT: %sel = select i1 false, i32 16, i32 %arg
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; CHECK-NEXT: br label %bb10
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;
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; CHECK-LABEL: bb10:
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; CHECK-NEXT: ret i32 undef
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;
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%c.1 = icmp slt i32 %arg, 0
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%sel = select i1 %c.1, i32 16, i32 %arg
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%c.2 = icmp eq i32 %sel, 0
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br i1 %c.2, label %bb12, label %bb10
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bb10: ; preds = %bb8
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ret i32 10
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bb12: ; preds = %bb8, %bb3, %bb
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ret i32 12
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}
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declare void @use(i32)
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define internal i1 @f1(i32 %x, i32 %y, i1 %cmp) {
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; CHECK-LABEL: define internal i1 @f1(i32 %x, i32 %y, i1 %cmp) {
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; CHECK-NEXT: %sel.1 = select i1 %cmp, i32 %x, i32 %y
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; CHECK-NEXT: %c.2 = icmp sgt i32 %sel.1, 100
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; CHECK-NEXT: %c.3 = icmp eq i32 %sel.1, 50
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; CHECK-NEXT: %res.1 = add i1 false, %c.2
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; CHECK-NEXT: %res.2 = add i1 %res.1, %c.3
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; CHECK-NEXT: %res.3 = add i1 %res.2, false
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; CHECK-NEXT: ret i1 %res.3
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;
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%sel.1 = select i1 %cmp, i32 %x, i32 %y
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%c.1 = icmp sgt i32 %sel.1, 300
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%c.2 = icmp sgt i32 %sel.1, 100
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%c.3 = icmp eq i32 %sel.1, 50
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%c.4 = icmp slt i32 %sel.1, 9
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%res.1 = add i1 %c.1, %c.2
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%res.2 = add i1 %res.1, %c.3
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%res.3 = add i1 %res.2, %c.4
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ret i1 %res.3
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}
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define i1 @caller1(i1 %cmp) {
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; CHECK-LABEL: define i1 @caller1(i1 %cmp) {
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; CHECK-NEXT: %call.1 = tail call i1 @f1(i32 10, i32 100, i1 %cmp)
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; CHECK-NEXT: %call.2 = tail call i1 @f1(i32 20, i32 200, i1 %cmp)
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; CHECK-NEXT: %res = and i1 %call.1, %call.2
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; CHECK-NEXT: ret i1 %res
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;
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%call.1 = tail call i1 @f1(i32 10, i32 100, i1 %cmp)
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%call.2 = tail call i1 @f1(i32 20, i32 200, i1 %cmp)
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%res = and i1 %call.1, %call.2
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ret i1 %res
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}
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define i1 @f2(i32 %x, i32 %y, i1 %cmp) {
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; CHECK-LABEL: define i1 @f2(i32 %x, i32 %y, i1 %cmp) {
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; CHECK-NEXT: %sel.1 = select i1 %cmp, i32 %x, i32 %y
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; CHECK-NEXT: %c.1 = icmp sgt i32 %sel.1, 300
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; CHECK-NEXT: %c.2 = icmp sgt i32 %sel.1, 100
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; CHECK-NEXT: %c.3 = icmp eq i32 %sel.1, 50
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; CHECK-NEXT: %c.4 = icmp slt i32 %sel.1, 9
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; CHECK-NEXT: %res.1 = add i1 %c.1, %c.2
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; CHECK-NEXT: %res.2 = add i1 %res.1, %c.3
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; CHECK-NEXT: %res.3 = add i1 %res.2, %c.4
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; CHECK-NEXT: ret i1 %res.3
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;
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%sel.1 = select i1 %cmp, i32 %x, i32 %y
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%c.1 = icmp sgt i32 %sel.1, 300
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%c.2 = icmp sgt i32 %sel.1, 100
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%c.3 = icmp eq i32 %sel.1, 50
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%c.4 = icmp slt i32 %sel.1, 9
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%res.1 = add i1 %c.1, %c.2
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%res.2 = add i1 %res.1, %c.3
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%res.3 = add i1 %res.2, %c.4
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ret i1 %res.3
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}
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define i1 @caller2(i32 %y, i1 %cmp) {
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; CHECK-LABEL: define i1 @caller2(i32 %y, i1 %cmp) {
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; CHECK-NEXT: %call.1 = tail call i1 @f2(i32 10, i32 %y, i1 %cmp)
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; CHECK-NEXT: %call.2 = tail call i1 @f2(i32 20, i32 %y, i1 %cmp)
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; CHECK-NEXT: %res = and i1 %call.1, %call.2
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; CHECK-NEXT: ret i1 %res
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;
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%call.1 = tail call i1 @f2(i32 10, i32 %y, i1 %cmp)
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%call.2 = tail call i1 @f2(i32 20, i32 %y, i1 %cmp)
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%res = and i1 %call.1, %call.2
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ret i1 %res
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}
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@GV = common global i32 0, align 4
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define i32 @f3_constantexpr_cond(i32 %x, i32 %y) {
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; CHECK-LABEL: define i32 @f3_constantexpr_cond(i32 %x, i32 %y)
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; CHECK-NEXT: %sel.1 = select i1 icmp eq (i32* bitcast (i32 (i32, i32)* @f3_constantexpr_cond to i32*), i32* @GV), i32 %x, i32 %y
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; CHECK-NEXT: ret i32 %sel.1
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;
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%sel.1 = select i1 icmp eq (i32* bitcast (i32 (i32, i32)* @f3_constantexpr_cond to i32*), i32* @GV), i32 %x, i32 %y
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ret i32 %sel.1
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}
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define i32 @caller3(i32 %y) {
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; CHECK-LABEL: define i32 @caller3(i32 %y) {
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; CHECK-NEXT: %call.1 = tail call i32 @f3_constantexpr_cond(i32 10, i32 %y)
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; CHECK-NEXT: %call.2 = tail call i32 @f3_constantexpr_cond(i32 20, i32 %y)
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; CHECK-NEXT: %res = and i32 %call.1, %call.2
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; CHECK-NEXT: ret i32 %res
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;
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%call.1 = tail call i32 @f3_constantexpr_cond(i32 10, i32 %y)
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%call.2 = tail call i32 @f3_constantexpr_cond(i32 20, i32 %y)
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%res = and i32 %call.1, %call.2
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ret i32 %res
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}
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