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8f9591eb21
The recently announced IBM z15 processor implements the architecture already supported as "arch13" in LLVM. This patch adds support for "z15" as an alternate architecture name for arch13. The patch also uses z15 in a number of places where we used arch13 as long as the official name was not yet announced. llvm-svn: 372435
122 lines
2.6 KiB
LLVM
122 lines
2.6 KiB
LLVM
; Test SELR and SELGR.
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;
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; RUN: llc < %s -mtriple=s390x-linux-gnu -mcpu=z15 -verify-machineinstrs | FileCheck %s
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; Test SELR.
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define i32 @f1(i32 %limit, i32 %a, i32 %b) {
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; CHECK-LABEL: f1:
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; CHECK: clfi %r2, 42
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; CHECK: selrl %r2, %r3, %r4
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; CHECK: br %r14
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%cond = icmp ult i32 %limit, 42
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%res = select i1 %cond, i32 %a, i32 %b
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ret i32 %res
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}
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; Test SELGR.
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define i64 @f2(i64 %limit, i64 %a, i64 %b) {
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; CHECK-LABEL: f2:
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; CHECK: clgfi %r2, 42
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; CHECK: selgrl %r2, %r3, %r4
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; CHECK: br %r14
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%cond = icmp ult i64 %limit, 42
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%res = select i1 %cond, i64 %a, i64 %b
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ret i64 %res
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}
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; Test SELR in a case that could use COMPARE AND BRANCH. We prefer using
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; SELR if possible.
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define i32 @f3(i32 %limit, i32 %a, i32 %b) {
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; CHECK-LABEL: f3:
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; CHECK: chi %r2, 42
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; CHECK: selre %r2, %r3, %r4
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; CHECK: br %r14
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%cond = icmp eq i32 %limit, 42
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%res = select i1 %cond, i32 %a, i32 %b
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ret i32 %res
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}
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; ...and again for SELGR.
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define i64 @f4(i64 %limit, i64 %a, i64 %b) {
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; CHECK-LABEL: f4:
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; CHECK: cghi %r2, 42
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; CHECK: selgre %r2, %r3, %r4
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; CHECK: br %r14
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%cond = icmp eq i64 %limit, 42
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%res = select i1 %cond, i64 %a, i64 %b
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ret i64 %res
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}
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; Check that we also get SELR as a result of early if-conversion.
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define i32 @f5(i32 %limit, i32 %a, i32 %b) {
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; CHECK-LABEL: f5:
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; CHECK: clfi %r2, 41
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; CHECK: selrh %r2, %r4, %r3
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; CHECK: br %r14
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entry:
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%cond = icmp ult i32 %limit, 42
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br i1 %cond, label %if.then, label %return
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if.then:
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br label %return
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return:
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%res = phi i32 [ %a, %if.then ], [ %b, %entry ]
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ret i32 %res
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}
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; ... and likewise for SELGR.
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define i64 @f6(i64 %limit, i64 %a, i64 %b) {
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; CHECK-LABEL: f6:
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; CHECK: clgfi %r2, 41
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; CHECK: selgrh %r2, %r4, %r3
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; CHECK: br %r14
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entry:
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%cond = icmp ult i64 %limit, 42
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br i1 %cond, label %if.then, label %return
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if.then:
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br label %return
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return:
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%res = phi i64 [ %a, %if.then ], [ %b, %entry ]
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ret i64 %res
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}
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; Check that inverting the condition works as well.
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define i32 @f7(i32 %limit, i32 %a, i32 %b) {
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; CHECK-LABEL: f7:
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; CHECK: clfi %r2, 41
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; CHECK: selrh %r2, %r3, %r4
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; CHECK: br %r14
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entry:
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%cond = icmp ult i32 %limit, 42
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br i1 %cond, label %if.then, label %return
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if.then:
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br label %return
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return:
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%res = phi i32 [ %b, %if.then ], [ %a, %entry ]
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ret i32 %res
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}
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; ... and likewise for SELGR.
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define i64 @f8(i64 %limit, i64 %a, i64 %b) {
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; CHECK-LABEL: f8:
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; CHECK: clgfi %r2, 41
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; CHECK: selgrh %r2, %r3, %r4
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; CHECK: br %r14
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entry:
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%cond = icmp ult i64 %limit, 42
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br i1 %cond, label %if.then, label %return
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if.then:
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br label %return
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return:
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%res = phi i64 [ %b, %if.then ], [ %a, %entry ]
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ret i64 %res
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}
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