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Imported Upstream version 5.18.0.167
Former-commit-id: 289509151e0fee68a1b591a20c9f109c3c789d3a
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external/llvm/test/CodeGen/SystemZ/int-cmp-48.ll
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external/llvm/test/CodeGen/SystemZ/int-cmp-48.ll
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; Test the use of TM and TMY.
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;
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; RUN: llc < %s -mtriple=s390x-linux-gnu -mcpu=z196 | FileCheck %s
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@g = global i32 0
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; Check a simple branching use of TM.
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define void @f1(i8 *%src) {
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; CHECK-LABEL: f1:
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; CHECK: tm 0(%r2), 1
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; CHECK: ber %r14
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; CHECK: br %r14
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entry:
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%byte = load i8 , i8 *%src
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%and = and i8 %byte, 1
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%cmp = icmp eq i8 %and, 0
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br i1 %cmp, label %exit, label %store
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store:
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store i32 1, i32 *@g
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br label %exit
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exit:
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ret void
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}
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; Check that we do not fold across an aliasing store.
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define void @f2(i8 *%src) {
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; CHECK-LABEL: f2:
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; CHECK: llc [[REG:%r[0-5]]], 0(%r2)
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; CHECK-DAG: mvi 0(%r2), 0
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; CHECK-DAG: tmll [[REG]], 1
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; CHECK: ber %r14
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; CHECK: br %r14
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entry:
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%byte = load i8 , i8 *%src
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store i8 0, i8 *%src
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%and = and i8 %byte, 1
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%cmp = icmp eq i8 %and, 0
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br i1 %cmp, label %exit, label %store
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store:
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store i32 1, i32 *@g
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br label %exit
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exit:
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ret void
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}
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; Check a simple select-based use of TM.
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define double @f3(i8 *%src, double %a, double %b) {
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; CHECK-LABEL: f3:
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; CHECK: tm 0(%r2), 1
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; CHECK: je {{\.L.*}}
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; CHECK: br %r14
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%byte = load i8 , i8 *%src
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%and = and i8 %byte, 1
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%cmp = icmp eq i8 %and, 0
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%res = select i1 %cmp, double %b, double %a
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ret double %res
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}
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; Check that we do not fold across an aliasing store.
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define double @f4(i8 *%src, double %a, double %b) {
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; CHECK-LABEL: f4:
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; CHECK: tm 0(%r2), 1
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; CHECK: je {{\.L.*}}
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; CHECK: mvi 0(%r2), 0
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; CHECK: br %r14
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%byte = load i8 , i8 *%src
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%and = and i8 %byte, 1
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%cmp = icmp eq i8 %and, 0
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%res = select i1 %cmp, double %b, double %a
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store i8 0, i8 *%src
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ret double %res
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}
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; Check an inequality check.
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define double @f5(i8 *%src, double %a, double %b) {
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; CHECK-LABEL: f5:
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; CHECK: tm 0(%r2), 1
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; CHECK: jne {{\.L.*}}
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; CHECK: br %r14
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%byte = load i8 , i8 *%src
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%and = and i8 %byte, 1
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%cmp = icmp ne i8 %and, 0
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%res = select i1 %cmp, double %b, double %a
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ret double %res
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}
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; Check that we can also use TM for equality comparisons with the mask.
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define double @f6(i8 *%src, double %a, double %b) {
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; CHECK-LABEL: f6:
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; CHECK: tm 0(%r2), 254
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; CHECK: jo {{\.L.*}}
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; CHECK: br %r14
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%byte = load i8 , i8 *%src
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%and = and i8 %byte, 254
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%cmp = icmp eq i8 %and, 254
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%res = select i1 %cmp, double %b, double %a
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ret double %res
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}
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; Check inequality comparisons with the mask.
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define double @f7(i8 *%src, double %a, double %b) {
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; CHECK-LABEL: f7:
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; CHECK: tm 0(%r2), 254
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; CHECK: jno {{\.L.*}}
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; CHECK: br %r14
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%byte = load i8 , i8 *%src
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%and = and i8 %byte, 254
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%cmp = icmp ne i8 %and, 254
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%res = select i1 %cmp, double %b, double %a
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ret double %res
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}
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; Check that we do not use the memory TM instruction when CC is being tested
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; for 2.
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define double @f8(i8 *%src, double %a, double %b) {
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; CHECK-LABEL: f8:
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; CHECK: llc [[REG:%r[0-5]]], 0(%r2)
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; CHECK: tmll [[REG]], 3
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; CHECK: jh {{\.L.*}}
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; CHECK: br %r14
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%byte = load i8 , i8 *%src
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%and = and i8 %byte, 3
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%cmp = icmp eq i8 %and, 2
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%res = select i1 %cmp, double %b, double %a
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ret double %res
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}
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; ...likewise 1.
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define double @f9(i8 *%src, double %a, double %b) {
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; CHECK-LABEL: f9:
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; CHECK: llc [[REG:%r[0-5]]], 0(%r2)
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; CHECK: tmll [[REG]], 3
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; CHECK: jl {{\.L.*}}
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; CHECK: br %r14
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%byte = load i8 , i8 *%src
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%and = and i8 %byte, 3
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%cmp = icmp eq i8 %and, 1
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%res = select i1 %cmp, double %b, double %a
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ret double %res
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}
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; Check the high end of the TM range.
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define double @f10(i8 *%src, double %a, double %b) {
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; CHECK-LABEL: f10:
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; CHECK: tm 4095(%r2), 1
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; CHECK: je {{\.L.*}}
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; CHECK: br %r14
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%ptr = getelementptr i8, i8 *%src, i64 4095
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%byte = load i8 , i8 *%ptr
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%and = and i8 %byte, 1
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%cmp = icmp eq i8 %and, 0
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%res = select i1 %cmp, double %b, double %a
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ret double %res
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}
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; Check the low end of the positive TMY range.
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define double @f11(i8 *%src, double %a, double %b) {
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; CHECK-LABEL: f11:
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; CHECK: tmy 4096(%r2), 1
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; CHECK: je {{\.L.*}}
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; CHECK: br %r14
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%ptr = getelementptr i8, i8 *%src, i64 4096
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%byte = load i8 , i8 *%ptr
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%and = and i8 %byte, 1
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%cmp = icmp eq i8 %and, 0
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%res = select i1 %cmp, double %b, double %a
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ret double %res
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}
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; Check the high end of the TMY range.
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define double @f12(i8 *%src, double %a, double %b) {
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; CHECK-LABEL: f12:
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; CHECK: tmy 524287(%r2), 1
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; CHECK: je {{\.L.*}}
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; CHECK: br %r14
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%ptr = getelementptr i8, i8 *%src, i64 524287
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%byte = load i8 , i8 *%ptr
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%and = and i8 %byte, 1
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%cmp = icmp eq i8 %and, 0
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%res = select i1 %cmp, double %b, double %a
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ret double %res
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}
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; Check the next byte up, which needs separate address logic.
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define double @f13(i8 *%src, double %a, double %b) {
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; CHECK-LABEL: f13:
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; CHECK: agfi %r2, 524288
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; CHECK: tm 0(%r2), 1
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; CHECK: je {{\.L.*}}
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; CHECK: br %r14
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%ptr = getelementptr i8, i8 *%src, i64 524288
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%byte = load i8 , i8 *%ptr
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%and = and i8 %byte, 1
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%cmp = icmp eq i8 %and, 0
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%res = select i1 %cmp, double %b, double %a
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ret double %res
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}
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; Check the low end of the TMY range.
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define double @f14(i8 *%src, double %a, double %b) {
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; CHECK-LABEL: f14:
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; CHECK: tmy -524288(%r2), 1
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; CHECK: je {{\.L.*}}
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; CHECK: br %r14
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%ptr = getelementptr i8, i8 *%src, i64 -524288
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%byte = load i8 , i8 *%ptr
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%and = and i8 %byte, 1
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%cmp = icmp eq i8 %and, 0
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%res = select i1 %cmp, double %b, double %a
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ret double %res
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}
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; Check the next byte down, which needs separate address logic.
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define double @f15(i8 *%src, double %a, double %b) {
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; CHECK-LABEL: f15:
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; CHECK: agfi %r2, -524289
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; CHECK: tm 0(%r2), 1
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; CHECK: je {{\.L.*}}
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; CHECK: br %r14
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%ptr = getelementptr i8, i8 *%src, i64 -524289
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%byte = load i8 , i8 *%ptr
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%and = and i8 %byte, 1
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%cmp = icmp eq i8 %and, 0
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%res = select i1 %cmp, double %b, double %a
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ret double %res
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}
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; Check that TM(Y) does not allow an index
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define double @f16(i8 *%src, i64 %index, double %a, double %b) {
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; CHECK-LABEL: f16:
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; CHECK: tm 0({{%r[1-5]}}), 1
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; CHECK: je {{\.L.*}}
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; CHECK: br %r14
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%ptr = getelementptr i8, i8 *%src, i64 %index
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%byte = load i8 , i8 *%ptr
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%and = and i8 %byte, 1
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%cmp = icmp eq i8 %and, 0
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%res = select i1 %cmp, double %b, double %a
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ret double %res
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}
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